c program problem solving

• C Data Types
• C Operators
• C Input and Output
• C Control Flow
• C Functions
• C Preprocessors
• C File Handling
• C Cheatsheet
• C Interview Questions
• C Hello World Program
• C Program For Bubble Sort
• Structure of the C Program
• Output of C Program | Set 29
• C++ Programming Examples
• Output of C Program | Set 21
• Output of C Program | Set 19
• Output of C Programs | Set 2
• Output of C Programs | Set 3
• Output of C Programs | Set 1
• Output of C Program | Set 22
• Output of C Programs | Set 4
• Output of C Program | Set 18
• Output of C Program | Set 28
• Output of C Programs | Set 5
• Output of C Programs | Set 6
• Output of C Program | Set 20
• Output of C Programs | Set 9
• Output of C Program | Set 26
• Output of C Program | Set 24
• Output of C Program | Set 17
• Output of C Programs | Set 15
• Output of C programs | Set 51
• Output of C programs | Set 46
• Output of C programs | Set 45
• Output of C Programs | Set 13
• Output of C programs | Set 37
• Output of C programs | Set 55

C Programs : Practicing and solving problems is the best way to learn anything. Here, we have provided 100+ C programming examples in different categories like basic C Programs, Fibonacci series in C, String, Array, Base Conversion, Pattern Printing, Pointers, etc. These C programs are the most asked interview questions from basic to advanced level.

C Program Topics :

• Basic C Programs
• Control Flow Programs
• Pattern Printing Programs
• Functions Programs
• Arrays Programs
• Strings Programs
• Conversions Programs
• Pointers Programs
• Structures and Unions Programs
• File I/O Programs
• Date and Time Programs
• More C Programs

C Program – Basic

• C Program to Print Your Own Name  
• C Program to Print an Integer Entered By the User
• C Program to Add Two Numbers
• C Program to Check Whether a Number is Prime or Not
• C Program to Multiply two Floating-Point Numbers  
• C Program to Print the ASCII Value of a Character
• C Program to Swap Two Numbers
• C Program to Calculate Fahrenheit to Celsius
• C Program to Find the Size of int, float, double, and char
• C Program to Add Two Complex Numbers  
• C Program to Print Prime Numbers From 1 to N  
• C Program to Find Simple Interest
• C Program to Find Compound Interest
• C Program for Area And Perimeter Of Rectangle  

C Program – Control Flow

• C Program to Check Whether a Number is Positive, Negative, or Zero
• C Program to Check Whether Number is Even or Odd
• C Program to Check Whether a Character is Vowel or Consonant  
• C Program to Find Largest Number Among Three Numbers
• C Program to Calculate Sum of Natural Numbers  
• C Program to Print Alphabets From A to Z Using Loop
• C Program to Check Leap Year
• C Program to Find Factorial of a Number
• C Program to Make a Simple Calculator 
• C Program to Generate Multiplication Table  
• C Program to Print Fibonacci Series
• C Program to Find LCM of Two Numbers
• C Program to Check Armstrong Number
• C Program to Display Armstrong Numbers Between 1 to 1000  
• C Program to Display Armstrong Number Between Two Intervals  
• C Program to Reverse a Number
• C Program to Check Whether a Number is a Palindrome or Not  
• C Program to Display Prime Numbers Between Intervals
• C Program to Check whether the input number is a Neon Number
• C Program to Find All Factors of a Natural Number
• C program to  Sum of Fibonacci Numbers at Even Indexes up to N Terms  

C Program – Pattern Printing

• C Program to Print Simple Pyramid Pattern 
• C Program to Print Given Triangle  
• C Program to Print 180 0 Rotation of Simple Pyramid
• C Program to Print Inverted Pyramid  
• C Program to Print Number Pattern
• C Program to Print Character Pattern  
• C Program to Print Continuous Character Pattern
• C Program to Print Hollow Star Pyramid
• C Program to Print Inverted Hollow Star pyramid  
• C Program to Print Hollow Star Pyramid in a Diamond Shape
• C Program to Print Full Diamond Shape Pyramid
• C Program to Print Pascal’s Pattern Triangle Pyramid  
• C Program to Print Floyd’s Pattern Triangle Pyramid  
• C Program to Print Reverse Floyd pattern Triangle Pyramid  

C Program – Functions

• C Program to Check Prime Number By Creating a Function  
• C Program to Display Prime Numbers Between Two Intervals Using Functions  
• C Program to Find All Roots of a Quadratic Equation
• C Program to Check Whether a Number can be Express as Sum of Two Prime Numbers
• C Program to Find the Sum of Natural Numbers using Recursion  
• C Program to Calculate the Factorial of a Number Using Recursion 
• C Program to Find G.C.D Using Recursion
• C Program to Reverse a Stack using Recursion
• C Program to Calculate Power Using Recursion

C Program – Arrays

• C Program to Print a 2D Array
• C Program to Find the Largest Element in an Array
• C Program to Find the Maximum and Minimum in an Array
• C Program to Search an Element in an Array (Binary search)
• C Program to Calculate the Average of All the Elements Present in an Array  
• C Program to Sort an Array using Bubble Sort
• C Program to Sort an Array using Merge Sort
• C Program to Sort an Array Using Selection Sort 
• C Program to Sort an Array Using Insertion Sort
• C Program to Sort the Elements of an Array in Descending Order
• C Program to Sort the Elements of an Array in Ascending Order 
• C Program to Remove Duplicate Elements From a Sorted Array
• C Program to Merge Two Arrays  
• C Program to Remove All Occurrences of an Element in an Array  
• C Program to Find Common Array Elements   
• C Program to Copy All the Elements of One Array to Another Array
• C Program For Array Rotation 
• C Program to Sort the 2D Array Across Rows
• C Program to Check Whether Two Matrices Are Equal or Not  
• C Program to Find the Transpose
• C Program to Find the Determinant of a Matrix
• C Program to Find the Normal and Trace  
• C Program to Add Two Matrices
• C Program to Multiply Two Matrices
• C Program to Print Boundary Elements of a Matrix  
• C Program to Rotate Matrix Elements  
• C Program to Compute the Sum of Diagonals of a Matrix  
• C Program to Interchange Elements of First and Last in a Matrix Across Rows  
• C Program to Interchange Elements of First and Last in a Matrix Across Columns  

C Program – Strings

• C Program to Add or Concatenate Two Strings
• C Program to Add 2 Binary Strings
• C Program to Get a Non-Repeating Character From the Given String
• C Program to check if the string is palindrome or not
• C Program to Reverse an Array or String
• C program to Reverse a String Using Recursion
• C Program to Find the Length of a String
• C Program to Sort a String
• C Program to Check For Pangram String
• C Program to Print the First Letter of Each Word  
• C Program to Determine the Unicode Code Point at a Given Index  
• C Program to Remove Leading Zeros  
• C Program to Compare Two Strings
• C Program to Compare Two Strings Lexicographically  
• C Program to Insert a String into Another String
• C Program to Split a String into a Number of Sub-Strings  

C Program – Conversions

• C Program For Boolean to String Conversion  
• C Program For Float to String Conversion
• C Program For Double to String Conversion  
• C Program For String to Long Conversion
• C Program For Long to String Conversion
• C Program For Int to Char Conversion  
• C Program For Char to Int Conversion  
• C Program For Octal to Decimal Conversion  
• C Program For Decimal to Octal Conversion
• C Program For Hexadecimal to Decimal Conversion  
• C Program For Decimal to Hexadecimal Conversion  
• C Program For Decimal to Binary Conversion 
• C Program For Binary to Decimal Conversion

C Program – Pointers

• How to Return a Pointer from a Function in C
• How to Declare a Two-Dimensional Array of Pointers in C?
• C Program to Find the Largest Element in an Array using Pointers
• C Program to Sort an Array using Pointers
• C Program to Sort a 2D Array of Strings
• C Program to Check if a String is a Palindrome using Pointers
• C Program to Create a Copy of a Singly Linked List using Recursion

C Program – Structures and Unions

• C Program to Store Information of Students Using Structure
• C Program to Store Student Records as Structures and Sort them by Name
• C Program to Add N Distances Given in inch-feet System using Structures
• C Program to Add Two Complex Numbers by Passing Structure to a Function
• C Program to Store Student Records as Structures and Sort them by Age or ID
• Read/Write Structure to a File in C 
• Flexible Array Members in a Structure in C

C Program – File IO

• C Program to Create a Temporary File
• C Program to Read/Write Structure to a File
• C Program to Rename a file
• C Program to Make a File Read-Only
• C program to Compare Two Files and Report Mismatches
• C Program to Copy One File into Another File  
• C Program to Print all the Patterns that Match Given Pattern From a File
• C Program to Append the Content of One Text File to Another
• C Program to Read Content From One File and Write it Into Another File
• C Program to Read and Print all Files From a Zip File  

C Program – Date and Time

• C Program to Format time in AM-PM format 
• C program to Print Digital Clock with the Current Time
• C Program to Display Dates of Calendar Year in Different Formats
• C Program to Display Current Date and Time
• C Program to Maximize Time by Replacing ‘_’ in a Given 24-Hour Format Time
• C Program to Convert the Local Time to GMT
• C Program to Convert Hours into Minutes and Seconds

C Program – More C Programs

• C Program to Show Runtime exceptions  
• C Program to Show Types of errors  
• C Program to Show Unreachable Code Error  
• C Program to Find Quotient and Remainder 
• C Program to Find the Initials of a Name 
• C Program to Draw a Circle in Graphics
• Printing Source Code of a C Program Itself

FAQs on C Program

Q1: what is c programming.

C is a structured, high-level, and general-purpose programming language, developed in the early 1970s by Dennis Ritchie at Bell Labs. C language is considered as the mother language of all modern programming languages, widely used for developing system software, embedded software, and application software.

Q2: How do I write a “Hello, World!” program in C?

To write a “Hello, World!” program in C, you can use the following code: #include <stdio.h> int main() {   printf(“Hello, World!\n”);   return 0; } This code uses the printf function to display the “Hello, World!” message on the screen.

Q3: Why should you learn C Programming?

There are many reasons why you should learn C programming: Versatility Efficiency Portability Widely used Foundation for other languages Employment opportunities and more.

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Basic programming exercises and solutions in C

C programming is a stepping stone for many programmers in the programming world. C is best to learn internals of programming and know how a computer program works internally.

Since it is close to low level programming. Programming in C can be a nightmare for beginners if not practiced properly. However, you can learn and practice at Codeforwin step by step.

In this programming exercise we will focus on basics of C programming. After completing this exercise you will learn basic structure and semantics of a C program and how to write mathematical programs in C.

If you are not a beginner, still reached here. Hold your breath I am sure you will find these exercises interesting.

Always feel free to drop your questions in comments section . I love to hear hugs and bugs from you all.

Required knowledge

Operators , Data types , Variables and expression , Basic input/output

Problem Solving Through Programming in C

In this lesson, we are going to learn Problem Solving Through Programming in C. This is the first lesson while we start learning the C language.

So let’s start learning the C language.

Table of Contents

Introduction to Problem Solving Through Programming in C

Regardless of the area of the study, computer science is all about solving problems with computers. The problem that we want to solve can come from any real-world problem or perhaps even from the abstract world. We need to have a standard systematic approach to problem solving through programming in c.

computer programmers are problem solvers. In order to solve a problem on a computer, we must know how to represent the information describing the problem and determine the steps to transform the information from one representation into another.

In this chapter, we will learn problem-solving and steps in problem-solving, basic tools for designing solution as an algorithm, flowchart , pseudo code etc.

A computer is a very powerful and versatile machine capable of performing a multitude of different tasks, yet it has no intelligence or thinking power.

The Computer performs many tasks exactly in the same manner as it is told to do. This places responsibility on the user to instruct the computer in a correct and precise manner so that the machine is able to perform the required job in a proper way. A wrong or ambiguous instruction may sometimes prove dangerous.

The computer cannot solve the problem on its own, one has to provide step by step solutions of the problem to the computer. In fact, the task of problem-solving is not that of the computer.

It is the programmer who has to write down the solution to the problem in terms of simple operations which the computer can understand and execute.

Problem-solving is a sequential process of analyzing information related to a given situation and generating appropriate response options.

In order to solve a problem with the computer, one has to pass through certain stages or steps. They are as follows:

Steps to Solve a Problem With the Computer

Step 1: Understanding the Problem:

Here we try to understand the problem to be solved in totally. Before with the next stage or step, we should be absolutely sure about the objectives of the given problem.

Step 2: Analyzing the Problem:

After understanding thoroughly the problem to be solved, we look at different ways of solving the problem and evaluate each of these methods.

The idea here is to search for an appropriate solution to the problem under consideration. The end result of this stage is a broad overview of the sequence of operations that are to be carried out to solve the given problem.

Step 3: Developing the solution:

Here, the overview of the sequence of operations that was the result of the analysis stage is expanded to form a detailed step by step solution to the problem under consideration.

Step 4: Coding and Implementation:

The last stage of problem-solving is the conversion of the detailed sequence of operations into a language that the computer can understand. Here, each step is converted to its equivalent instruction or instructions in the computer language that has been chosen for the implantation.

The vehicle for the computer solution to a problem is a set of explicit and unambiguous instructions expressed in a programming language. This set of instruction is called a program with problem solving through programming in C .

A program may also be thought of as an algorithm expressed in a programming language. an algorithm, therefore, corresponds to a solution to a problem that is independent of any programming language .

To obtain the computer solution to a problem once we have the program we usually have to supply the program with input or data. The program then takes this input and manipulates it according to its instructions. Eventually produces an output which represents the computer solution to the problem.

The problem solving is a skill and there are no universal approaches one can take to solving problems. Basically one must explore possible avenues to a solution one by one until she/he comes across the right path to a solution.

In general, as one gains experience in solving problems, one develops one’s own techniques and strategies, though they are often intangible. Problem-solving skills are recognized as an integral component of computer programming.

Note: Practice C Programs for problem solving through programming in C.

Problem Solving Steps

Problem-solving is a creative process which defines systematization and mechanization. There are a number of steps that can be taken to raise the level of one’s performance in problem-solving.

A problem-solving technique follows certain steps in finding the solution to a problem. Let us look into the steps one by one:

1. Problem Definition Phase:

The success in solving any problem is possible only after the problem has been fully understood. That is, we cannot hope to solve a problem, which we do not understand. So, the problem understanding is the first step towards the solution of the problem.

In the problem definition phase, we must emphasize what must be done rather than how is it to be done. That is, we try to extract the precisely defined set of tasks from the problem statement.

Inexperienced problem solvers too often gallop ahead with the task of the problem – solving only to find that they are either solving the wrong problem or solving the wrong problem or solving just one particular problem.

2. Getting Started on a Problem:

There are many ways of solving a problem and there may be several solutions. So, it is difficult to recognize immediately which path could be more productive. Problem solving through programming in C.

Sometimes you do not have any idea where to begin solving a problem, even if the problem has been defined. Such block sometimes occurs because you are overly concerned with the details of the implementation even before you have completely understood or worked out a solution.

The best advice is not to get concerned with the details. Those can come later when the intricacies of the problem have been understood.

3. Use of Specific Examples:

To get started on a problem, we can make use of heuristics i.e the rule of thumb. This approach will allow us to start on the problem by picking a specific problem we wish to solve and try to work out the mechanism that will allow solving this particular problem.

It is usually much easier to work out the details of a solution to a specific problem because the relationship between the mechanism and the problem is more clearly defined.

This approach of focusing on a particular problem can give us the foothold we need for making a start on the solution to the general problem.

4. Similarities Among Problems:

One way to make a start is by considering a specific example. Another approach is to bring the experience to bear on the current problems. So, it is important to see if there are any similarities between the current problem and the past problems which we have solved.

The more experience one has the more tools and techniques one can bring to bear in tackling the given problem. But sometimes, it blocks us from discovering a desirable or better solution to the problem.

A skill that is important to try to develop in problem-solving is the ability to view a problem from a variety of angles.

One must be able to metaphorically turn a problem upside down, inside out, sideways, backwards, forwards and so on. Once one has developed this skill it should be possible to get started on any problem.

5. Working Backwards from the Solution:

In some cases, we can assume that we already have the solution to the problem and then try to work backwards to the starting point. Even a guess at the solution to the problem may be enough to give us a foothold to start on the problem.

We can systematize the investigations and avoid duplicate efforts by writing down the various steps taken and explorations made.

Another practice that helps to develop the problem-solving skills, once we have solved a problem, to consciously reflect back on the way we went about discovering the solution.

General Problem Solving Strategies:

There are a number of general and powerful computational strategies that are repeatedly used in various guises in computer science.

Often it is possible to phrase a problem in terms of one of these strategies and achieve considerable gains in computational efficiency.

1. Divide and Conquer:

The most widely known and used strategy, where the basic idea is to break down the original problem into two or more sub-problems, which is presumably easier or more efficient to solve.

The Splitting can be carried on further so that eventually we have many sub-problems, so small that further splitting is no necessary to solve them. We shall see many examples of this strategy and discuss the gain in efficiency due to its application.

2. Binary Doubling:

This is the reverse of the divide and conquers strategy i.e build-up the solution for a larger problem from solutions and smaller sub-problems.

3. Dynamic Programming:

Another general strategy for problem-solving which is useful when we can build-up the solution as a sequence of the intermediate steps. Problem Solving through programming in C.

The travelling salesman problem falls into this category. The idea here is that a good or optimal solution to a problem can be built-up from good or optimal solutions of the sub-problems.

4. General Search, Back Tracking and Branch-and-Bound:

All of these are variants of the basic dynamic programming strategy but are equally important.

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The best way to learn C programming is by practicing examples. The page contains examples on basic concepts of C programming. You are advised to take the references from these examples and try them on your own.

All the programs on this page are tested and should work on all platforms.

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• C Program to Create Pyramids and Patterns
• C Program to Check Prime Number
• C Program to Check Palindrome Number
• C Program to Print Hello World
• C "Hello, World!" Program
• C Program to Print an Integer (Entered by the User)
• C Program to Add Two Integers
• C Program to Multiply Two Floating-Point Numbers
• C Program to Find ASCII Value of a Character
• C Program to Compute Quotient and Remainder
• C Program to Find the Size of int, float, double and char
• C Program to Demonstrate the Working of Keyword long
• C Program to Swap Two Numbers
• C Program to Check Whether a Number is Even or Odd
• C Program to Check Whether a Character is a Vowel or Consonant
• C Program to Find the Largest Number Among Three Numbers
• C Program to Find the Roots of a Quadratic Equation
• C Program to Check Leap Year
• C Program to Check Whether a Number is Positive or Negative
• C Program to Check Whether a Character is an Alphabet or not
• C Program to Calculate the Sum of Natural Numbers
• C Program to Find Factorial of a Number
• C Program to Generate Multiplication Table
• C Program to Display Fibonacci Sequence
• C Program to Find GCD of two Numbers
• C Program to Find LCM of two Numbers
• C Program to Display Characters from A to Z Using Loop
• C Program to Count Number of Digits in an Integer
• C Program to Reverse a Number
• C Program to Calculate the Power of a Number
• C Program to Check Whether a Number is Palindrome or Not
• C Program to Check Whether a Number is Prime or Not
• C Program to Display Prime Numbers Between Two Intervals
• C Program to Check Armstrong Number
• C Program to Display Armstrong Number Between Two Intervals
• C Program to Display Factors of a Number
• C Program to Make a Simple Calculator Using switch...case
• C Program to Display Prime Numbers Between Intervals Using Function
• C Program to Check Prime or Armstrong Number Using User-defined Function
• C Program to Check Whether a Number can be Expressed as Sum of Two Prime Numbers
• C Program to Find the Sum of Natural Numbers using Recursion
• C Program to Find Factorial of a Number Using Recursion
• C Program to Find G.C.D Using Recursion
• C Program to Convert Binary Number to Decimal and vice-versa
• C Program to Convert Octal Number to Decimal and vice-versa
• C Program to Convert Binary Number to Octal and vice-versa
• C Program to Reverse a Sentence Using Recursion
• C program to calculate the power using recursion
• C Program to Calculate Average Using Arrays
• C Program to Find Largest Element in an Array
• C Program to Calculate Standard Deviation
• C Program to Add Two Matrices Using Multi-dimensional Arrays
• C Program to Multiply Two Matrices Using Multi-dimensional Arrays
• C Program to Find Transpose of a Matrix
• C Program to Multiply two Matrices by Passing Matrix to a Function
• C Program to Access Array Elements Using Pointer
• C Program Swap Numbers in Cyclic Order Using Call by Reference
• C Program to Find Largest Number Using Dynamic Memory Allocation
• C Program to Find the Frequency of Characters in a String
• C Program to Count the Number of Vowels, Consonants and so on
• C Program to Remove all Characters in a String Except Alphabets
• C Program to Find the Length of a String
• C Program to Concatenate Two Strings
• C Program to Copy String Without Using strcpy()
• C Program to Sort Elements in Lexicographical Order (Dictionary Order)
• C Program to Store Information of a Student Using Structure
• C Program to Add Two Distances (in inch-feet system) using Structures
• C Program to Add Two Complex Numbers by Passing Structure to a Function
• C Program to Calculate Difference Between Two Time Periods
• C Program to Store Information of Students Using Structure
• C Program to Store Data in Structures Dynamically
• C Program to Write a Sentence to a File
• C Program to Read the First Line From a File
• C Program to Display its own Source Code as Output
• C Program to Print Pyramids and Patterns

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Home » C programming language

C Programs with Solutions

This section contains popular C programs with solution. Learn and practice these programs to test and enhance your C skills. Last updated : April 01, 2023

The best way to learn C programming is by practicing and solving the C programs (C problems). We have 1000+ C programs with solutions which are categorized below. Practice these C programs to learn and enhance your C problem-solving skills.

List of C programs

Practice the C programs based on the categories, library functions, advanced, top searched, and latest.

C programs by categories

• C Basic and Conditional Programs 90
• C switch case programs 06
• C 'goto' programs 10
• Bitwise related Programs 32
• Looping (for, while, do while) Programs 18
• C String Manipulation programs 10
• C String programs 50
• String User Define Functions Programs 11
• Recursion Programs 13
• Number (Digits Manipulation) Programs 10
• Number System Conversion Programs 15
• Star/Pyramid Programs 17
• Sum of Series Programs (set 1) 05
• Sum of Series Programs (set 2) 13
• Pattern printing programs 01
• User Define Function Programs (1) 05
• User Define Function Programs (2) 13
• One Dimensional Array Programs 58
• Two Dimensional Array (Matrix) Programs 21
• File Handling Programs 32
• Structure & Union Programs 12
• Pointer Programs 13
• Dynamic Memory Allocation Programs 05
• Command Line Arguments Programs 06
• Common C program Errors 22
• C scanf() programs 11
• C preprocessor programs 24
• C typedef programs 03
• C SQLite programs 11
• C MySQL programs 09
• C Tricky Programs 07
• Misc Problems & Solutions 05

C programs on standard library functions

• ctype.h Library Functions (Set 1)
• ctype.h Library Functions (Set 2)
• string.h Library Functions
• conio.h Library Functions
• dos.h Library Functions
• math.h Library Functions
• graphics.h Library Functions
• assert.h Library Functions
• stdio.h Library Functions

Advance C programs

• C program to create your own header file/ Create your your own header file in C
• gotoxy(),clrscr(),getch(),getche() for GCC, Linux.
• fork() function explanation and examples in Linux C
• C program to print character without using format specifiers.
• C program to find Binary Addition and Binary Subtraction.
• C program to print weekday of given date.
• C program to format/extract ip address octets
• C program to check given string is a valid IPv4 address or not.
• C program to extract bytes from an integer (Hexadecimal) value
• C program to store date in an integer variable

Top searched C programs

Here is the list of most important/useful programs searched on the web .

Top visited programs on IncludeHelp

• Pattern Programs in C
• C program to design calculator with basic operations using switch
• C program to find factorial of a number
• C program to check whether number is Perfect Square or not
• C program to find SUM and AVERAGE of two numbers
• C program to convert temperature from Fahrenheit to Celsius and Celsius to Fahrenheit
• C program to read and print an employee's detail using structure
• Dynamic Memory Allocation programs
• C program to convert number from Decimal to Binary
• C program to check whether number is Palindrome or not

Top searched programs on the web

• First C program to print "Hello World".
• C program to find factorial of a number.
• C program to swap two numbers without using third variable.
• C program to check whether a number if Armstrong or not.
• C program to check whether a number if Even or Odd.
• C program to print all leap years from 1 to N.
• C program to calculate employee gross salary.
• C Program to print tables of numbers from 1 to 20.
• C program to print star/pyramid series.
• C program to convert temperature from Celsius to Fahrenheit and vice versa.
• C program to convert number from Decimal to Binary.
• C program to convert number from Binary to Decimal.
• C program to print ASCII Table.
• C program to get and set current system date and time.
• C program to run dos command.

Latest C programs

• C program to generate random numbers within a range
• C program to compare strings using strcmp() function
• Interchange the two adjacent nodes in a given circular linked list | C program
• Find the largest element in a doubly linked list | C program
• Convert a given singly linked list to a circular list | C program
• Implement Circular Doubly Linked List | C program
• Print the Alternate Nodes in a Linked List without using Recursion
• Print the Alternate Nodes in a Linked List using Recursion
• Find the length of a linked list without using recursion
• Find the length of a linked list using recursion
• Count the number of occurrences of an element in a linked list without using recursion
• Count the number of occurrences of an element in a linked list using recursion
• C program to convert a Binary Tree into a Singly Linked List by Traversing Level by Level
• C program to Check if nth Bit in a 32-bit Integer is set or not
• C program to swap two Integers using Bitwise Operators
• C program to replace bit in an integer at a specified position from another integer
• C program to find odd or even number using bitmasking
• C program to check whether a given number is palindrome or not using Bitwise Operator
• C program to count number of bits set to 1 in an Integer
• C program to check if all the bits of a given integer is one (1)
• C program to find the Highest Bit Set for any given Integer
• C program to Count the Number of Trailing Zeroes in an Integer
• C Program to find the Biggest Number in an Array of Numbers using Recursion
• C program to accept Sorted Array and do Search using Binary Search
• C Program to Cyclically Permute the Elements of an Array
• C program to find two smallest elements in a one dimensional array
• Write your own memset() function in C
• memset() function in C with Example
• Write your own memcpy() function in C
• memcpy() function in C with Example

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C Programming Examples for Beginners With Solutions & Output

C Programming Examples include many programs, from beginner-level examples like "Hello World" and "Sum of Two Numbers" to more advanced programs like the Fibonacci series and Prime Numbers.

C Programming Examples: Are you just starting out in C programming but feeling overwhelmed? Maybe you’ve been working through the basics of C programming for a while, but are now looking to take your skills to the next level. If so, we can definitely relate!

Here, we share C programs covering various topics in C Programming, including arrays, strings, series, area & volume of geometrical figures, mathematical calculations, sorting & searching algorithms, and many more. Our goal is to provide comprehensive solutions to all C programming questions you may encounter, whether in interviews or class assignments. 

Each program in this article is accompanied by its working code and output. The programs are organized into categories, with related programs grouped together. It is recommended to grasp the fundamentals of the C language through our C tutorial before delving into these C programs. You can also download our C programming examples PDF to get instant access to C programming examples . So, whether you’re just setting out or have already made some progress in your learning adventure, this will be the perfect resource guide for honing your C coding skills!

If you find learning C language challenging, consider exploring our new C course from Physics Wallah . This interactive learning experience involves understanding a concept, completing small coding exercises, and progressing to the next lesson. Use “READER” coupon to get instant discounts on PW courses.

Also read:  C Programming Language History, Invention, Timeline & More

Table of Contents

C Programming Examples for Beginners

Below, we will share C programming examples for beginners. You can also download C language programs PDF .

1. C Hello World Program

#include <stdio.h>

int main() {

 printf(“Hello, World!\n”);

2. C Program to Print Your Own Name

 printf(“Your Name\n”);

3. C Program to Print an Integer Entered By the User

 printf(“Enter an integer: “);

 scanf(“%d”, &num);

 printf(“You entered: %d\n”, num);

4. C Program to Check Whether a Number is Prime or Not

 int num, i, flag = 0;

 printf(“Enter a number: “);

 for (i = 2; i <= num / 2; ++i) {

 if (num % i == 0) {

 if (flag == 0)

 printf(“%d is a prime number.\n”, num);

 printf(“%d is not a prime number.\n”, num);

Also read:  Top 30 Most Asked Basic Programming Questions Asked During Interviews

C Programming Examples With Solutions

Here are some C programming examples with solutions and codes:

1. C Program to Multiply two Floating-Point Numbers

 float num1, num2, product;

 printf(“Enter two floating-point numbers: “);

 scanf(“%f %f”, &num1, &num2);

 product = num1 * num2;

 printf(“Product: %f\n”, product);

2. C Program to Print the ASCII Value of a Character

 printf(“Enter a character: “);

 scanf(“%c”, &ch);

 printf(“ASCII value of %c = %d\n”, ch, ch);

3. C Program to Swap Two Numbers

 int num1, num2, temp;

 printf(“Enter two numbers: “);

 scanf(“%d %d”, &num1, &num2);

 temp = num1;

 num1 = num2;

 num2 = temp;

 printf(“After swapping: num1 = %d, num2 = %d\n”, num1, num2);

4. C Program to Calculate Fahrenheit to Celsius

 float fahrenheit, celsius;

 printf(“Enter temperature in Fahrenheit: “);

 scanf(“%f”, &fahrenheit);

 celsius = (fahrenheit – 32) * 5 / 9;

 printf(“Temperature in Celsius: %f\n”, celsius);

5. C Program to Find the Size of int, float, double, and char

 printf(“Size of int: %d bytes\n”, sizeof(int));

 printf(“Size of float: %d bytes\n”, sizeof(float));

 printf(“Size of double: %d bytes\n”, sizeof(double));

 printf(“Size of char: %d byte\n”, sizeof(char));

6. C Program to Print Prime Numbers From 1 to N

 int i, j, n;

 printf(“Enter a number (N): “);

 scanf(“%d”, &n);

 printf(“Prime numbers between 1 and %d are: “, n);

 for (i = 2; i <= n; ++i) {

 int isPrime = 1;

 for (j = 2; j <= i / 2; ++j) {

 if (i % j == 0) {

 isPrime = 0;

 if (isPrime)

 printf(“%d “, i);

Also read:  10 Best Programming Languages for Game Development in 2024

C Programming Examples With Output

Learners can also download c programming examples with output PDF to start their C language journey. But practice is the key to learning C language properly. Here are some of the best C programming examples with output :

1. C Program to Check Whether a Number is Positive, Negative, or Zero

 if (num > 0)

 printf(“Positive number\n”);

 else if (num < 0)

 printf(“Negative number\n”);

 printf(“Zero\n”);

Enter a number: 7

Positive number

2. C Program to Check Whether Number is Even or Odd

 if (num % 2 == 0)

 printf(“Even number\n”);

 printf(“Odd number\n”);

Enter a number: 15

3. C Program to Calculate Sum of Natural Numbers

 int n, sum = 0;

 printf(“Enter a positive integer: “);

 for (int i = 1; i <= n; ++i) {

 printf(“Sum of natural numbers from 1 to %d: %d\n”, n, sum);

Enter a positive integer: 5

Sum of natural numbers from 1 to 5: 15

4. C Program to Print Alphabets From A to Z Using Loop

 printf(“Alphabets from A to Z:\n”);

 for (ch = ‘A’; ch <= ‘Z’; ++ch) {

 printf(“%c “, ch);

Alphabets from A to Z:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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C Programs for Practice

Below table shows the C programming code that you can use for practice:

Why Choose C Language for Learning?

C language is an excellent entry point into the programming world due to its simplicity and ease of learning. While certain concepts may pose challenges, overall, learners find C language accessible. It introduces fundamental programming concepts like data types, variables, functions, arrays, strings, conditional statements, loops, input/output, and data structures—all foundational principles applicable to various modern programming languages.

For newcomers, acquiring proficiency in C/C++ is crucial for success in college placement interviews, especially with service-based companies such as TCS, Accenture, IBM, etc., which actively seek C developers.

Highly Efficient:

C language is renowned for its efficiency and performance. Programs written in C execute swiftly and optimize system resources effectively. 

System-level Programming:

Offering low-level control over a computer’s hardware and memory, C language is well-suited for system-level programming and the development of operating systems.

Portability:

C language is favored for its portability; its code can be compiled and executed on various platforms with minimal modifications. This makes C an ideal choice to run programs on diverse platforms.

Easy to Learn:

With a small learning curve, C language involves fewer keywords and concepts. Its syntax is easy to remember and apply. The C compiler provides descriptive errors, simplifying the debugging process and making it particularly beginner-friendly.

Versatility:

C language’s versatility allows for creating both small utility software and large-scale enterprise applications. Its broad applicability makes it a valuable language to master in programming.

Benefits of Practicing C Programming Examples

Practicing C Programming Examples offers several benefits for learners and aspiring programmers:

• Concept Reinforcement: By working on C programming examples, individuals reinforce fundamental programming concepts such as variables, loops, conditionals, and functions. This hands-on practice helps solidify theoretical knowledge.
• Preparation for Interviews: Many technical interviews, especially for entry-level programming positions, involve solving coding problems. Practicing C programming examples prepares individuals for such interviews, helping them perform well and showcase their coding proficiency.
• Application of Knowledge: C programming examples provide a practical platform for applying theoretical knowledge gained from textbooks or tutorials. This application-oriented learning approach ensures a deeper understanding of programming concepts.
• Syntax Mastery: Working on examples allows learners to master the syntax of the C programming language. Writing and debugging code regularly contributes to becoming fluent in C syntax, which is essential for effective programming.
• Understanding Algorithms and Logic: Examples often involve implementing algorithms and logical reasoning. Working through these examples improves algorithmic thinking and logic building, essential skills for writing efficient and optimized code.
• Skill Development: Solving a variety of programming problems enhances problem-solving skills. Each example presents a unique challenge, requiring learners to devise efficient solutions and improve their analytical and coding abilities.
• Builds Confidence: Successfully solving programming problems instills confidence in learners. As they tackle increasingly complex examples, individuals become more comfortable handling challenging coding tasks, boosting their overall confidence in programming.
• Diverse Problem-Solving: C programming examples cover a wide range of problems, including mathematical calculations, string manipulations, array operations, and more. This diversity exposes learners to various problem-solving approaches, enriching their programming toolkit.
• Portfolio Building: Individuals can use the solutions to these examples to build a portfolio showcasing their coding skills. A well-documented portfolio becomes a valuable asset when seeking internships, jobs, or contributing to open-source projects.

Also read:  C++ For Kids- Learn Programming in The Fun Way

Why is it essential to practice C programming examples?

Practicing C programming examples is crucial for several reasons. It helps reinforce theoretical knowledge, enhances problem-solving skills, and provides hands-on experience with the language. Through practice, programmers become familiar with common syntax, logic building, and debugging techniques, contributing to overall proficiency in C programming.

What is the purpose of the "Swap Two Numbers" program?

The "Swap Two Numbers" program is designed to interchange the values of two variables. It is a fundamental programming exercise that helps users understand the concept of swapping values using a temporary variable or without using one. Swapping is a common operation in programming, and mastering it is essential.

Where can I find more C programming examples for practice?

You can find more C programming examples for practice on online platforms, programming websites, and educational resources.

How can I use C programming examples for learning?

Start with simple examples like Hello World and gradually progress to more complex ones. Analyze the code, understand how each line works, and experiment with modifications. This hands-on approach is effective for learning programming.

Can I modify the examples to create my programs?

Absolutely! Modifying existing examples is an excellent way to practice. Experiment with changing variables, adding features, or solving similar problems. This process fosters creativity and a deeper understanding of coding.

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C Solved programs, problems with solutions – C programming

C solved programs, problems with solutions.

C Solved programs —->  C is a powerful general-purpose programming language. It is fast, portable and available in all platforms. If you are new to programming, C is a good choice to start your programming journey.

This page contains the C solved programs/examples with solutions, here we are providing most important programs on each topic . These C examples cover a wide range of programming areas in Computer Science.

Every example program includes the description of the program, C code as well as output of the program. All examples are compiled and tested on a Windows system.

These examples can be as simple and basic as “Hello World” program to extremely tough and advanced C programs. Here is the List of C solved programs/examples with solutions (category wise) and detailed explanation.

C Solved Programs by categories…….

If you found any error or any queries related to the above programs or any questions or reviews , you wanna to ask from us ,you may Contact Us through our contact Page or you can also comment below in the comment section.We will try our best to reach up to you in short interval.

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(using file handling) Enter Country Name (Inida): india 5 states() Enter Name of State : Rajasthan Enter Name of capital : jaipur show the menu of jaipur city: 1. check college in city : 2. check school Name: Enter choice : 1 show list of all college in jaipur city(10): college Name address contact no Enter choice : 2 show list of all school in jaipur city(10): school Name address contact no

Write a program that reads a list of integers until a stopping condition is met and then print each test score together with Pass, if the score is greater than or equal to 60, and Fail otherwise.

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Write a C program to find the sum of contiguous sub array within an array which has the smallest sum. Also print where in the array the smallest sum occurred. For example, given the array [4, -1, 2, -3, 1, -2, 7, -5, 4], the contiguous sub-array [1, -3, -2] has the smallest sum of -4 and it occurred in [0:6]. To understand contiguous sub array, given the array [1, 2, 3] the contiguous sub arrays are [1], [2], [3], [1, 2], [2, 3], [1, 2, 3], but [1, 3] is not a contiguous sub array. Sample Input Sample Output

Consider an Auto spares store which has different categories of items like. Under each category, the shop holds a maximum capacity of 1000 items. The arrangement of items in the racks vary from time to time. Based on the item type and availability, the supplier also varies. Each supplier can supply different items. The system in the shopping mall has the complete description of list of all items which includes item number, name, category, supplier name, price, total quantity and qty available. Based on the items purchased by the customer, billing is done. From the above description, initially the owner …  Read more »

#include <stdio.h>

int   main () {   int    i ;   float   avg = 0 ,  sum = 0  , a [ 10 ];  

  printf ( “Enter 10 numbers” );   for  ( i = 0 ;  i <= 9 ;  i ++)   scanf ( “ %d “ , & a [ i ]);

  for  ( i = 0 ;  i <= 9 ;  i ++); {   sum = sum + a [ i ];   avg =  sum / 10.0 ; }   printf ( “average is  %f “ ,  avg );

return   0 ; }

the output averge is 0.00000 please help i’m beginer in c programming using visual studio code

Try with this code ..

#include<stdio.h>

int main() {  int a[20],i ,n ;  float avg=0 , sum=0 ;

 printf(“Enter no of elements in array :\n “);  scanf(“%d”, &n);  printf(“\n Enter the array of element : \n”);

 for (i=1; i<=n; i++)  {    scanf(“%d”,&a[i]);  }   for (i=1; i<=n; i++)   {     sum=sum+a[i];     avg= sum/n;   }

 printf(“\n sum of elements :%f”,sum);  printf(“\n average is %f”, avg);

return 0; }

#include <stdio.h> int main(){ /*Short and Sweet Code, Working code Please check inverted commas while running this code.*/

  int value[10];   float Sum, Average;   for(int i=0; i<=9; i++){   printf(“Enter %d number: \n”, i+1);   scanf(“%d”, &value[i]);   }

  for(int i=0; i<=9; i++){

    Sum += value[i];      } Average = Sum/10;

printf(“Average of these 10 numbers is %f”, Average);     return 0; }

#include<stdio.h> int main() { /*You have made 2 mistakes in this program.*/  int  i;  float avg=0, sum=0 ,a[10];    printf(“Enter 10 numbers”);  for (i=0; i<=9; i++)  scanf(“ %d “, &a[i]); /*ERROR 1: %d should be replaced with %f in your program because you declared a[10] as a float so you cannot use %d.*/

 for (i=0; i<=9; i++) ; /*ERROR 2: In this Loop Remove this semicolon after the brackets.*/ {  sum=sum+a[i];  avg= sum/10.0; }  printf(“average is %f“, avg);

/*After Doing this correction your program will run without giving error OR zero.*/

return 0; }

Plz Solve this Programe

ভাই পেয়েছেন

Interest is compounded annually at 10% by a certain bank. Make a program that would input an amount and a number of years (the program should test that both are positive) and output how much the original amount will be worth after that period.  

It’s really a wonderful website💥

The Business organization has a problem that they encounter. They received complains about the orders they have that are inaccurate mostly in selection of orders, prices, and quantity of the products. They want to have system update as soon as possible to fix this problem and asking for a refund. Every order must be confirmed to avoid any conflicts of transaction. Also the discounts are not applied when the order are wholesales which is needed to be fix when being total. Certain products are discounted either from a voucher or a wholesale that is minimum of five products. The deduction of …  Read more »

To check whether the candidate is eligible for vote or not

(A) Create a C structure, volume with fields: liter and mililiter. Read the value of two volumes and add them, if the value of mililiter is more than 1000 then add it to liter value.

Write a c program for There are 20 workers working in a field. the owner of Field gives them 20 rupees. In that 20 rupees each man get 4 rupees each woman get 50 paise and each child get 25 paise. Then how many are men, women, children in that 20 workers?

A vending machine questions

1. Write a C program to print all odd numbers between 2 values ‘n’ and ‘m’. Read the values ‘n’ and ‘m’ from the user and print all the odd numbers in this range (inclusive range, i.e if ‘n’ or ‘m’ is odd, print those as well).

write a programming using for loop to print all the numbers from them as even m to n there by case classifying them as even or odd

01. PLAY WITH PRINTF()

02. data type & variables, 03. user input scanf(), 04. apply your conditions, 05. magic of loop, 06. uses of array, 07. fun of function, 08. start with string, 09. pointer de complexity, 10. structur of union, 11. basic of file i/o, 12. math & coding.

How to Solve Coding Problems with a Simple Four Step Method

I had fifteen minutes left, and I knew I was going to fail.

I had spent two months studying for my first technical interview.

I thought I was prepared, but as the interview came to a close, it hit me: I had no idea how to solve coding problems.

Of all the tutorials I had taken when I was learning to code, not one of them had included an approach to solving coding problems.

I had to find a method for problem-solving—my career as a developer depended on it.

I immediately began researching methods. And I found one. In fact, what I uncovered was an invaluable strategy. It was a time-tested four-step method that was somehow under the radar in the developer ecosystem.

In this article, I’ll go over this four-step problem-solving method that you can use to start confidently solving coding problems.

Solving coding problems is not only part of the developer job interview process—it’s what a developer does all day. After all, writing code is problem-solving.

A method for solving problems

This method is from the book How to Solve It by George Pólya. It originally came out in 1945 and has sold over one million copies.

His problem-solving method has been used and taught by many programmers, from computer science professors (see Udacity’s Intro to CS course taught by professor David Evans) to modern web development teachers like Colt Steele.

Let’s walk through solving a simple coding problem using the four-step problem-solving method. This allows us to see the method in action as we learn it. We'll use JavaScript as our language of choice. Here’s the problem:

Create a function that adds together two numbers and returns that value. There are four steps to the problem-solving method:

• Understand the problem.
• Devise a plan.
• Carry out the plan.

Let’s get started with step one.

Step 1: Understand the problem.

When given a coding problem in an interview, it’s tempting to rush into coding. This is hard to avoid, especially if you have a time limit.

However, try to resist this urge. Make sure you actually understand the problem before you get started with solving it.

Read through the problem. If you’re in an interview, you could read through the problem out loud if that helps you slow down.

As you read through the problem, clarify any part of it you do not understand. If you’re in an interview, you can do this by asking your interviewer questions about the problem description. If you’re on your own, think through and/or Google parts of the question you might not understand.

This first step is vital as we often don’t take the time to fully understand the problem. When you don’t fully understand the problem, you’ll have a much harder time solving it.

To help you better understand the problem, ask yourself:

What are the inputs?

What kinds of inputs will go into this problem? In this example, the inputs are the arguments that our function will take.

Just from reading the problem description so far, we know that the inputs will be numbers. But to be more specific about what the inputs will be, we can ask:

Will the inputs always be just two numbers? What should happen if our function receives as input three numbers?

Here we could ask the interviewer for clarification, or look at the problem description further.

The coding problem might have a note saying, “You should only ever expect two inputs into the function.” If so, you know how to proceed. You can get more specific, as you’ll likely realize that you need to ask more questions on what kinds of inputs you might be receiving.

Will the inputs always be numbers? What should our function do if we receive the inputs “a” and “b”? Clarify whether or not our function will always take in numbers.

Optionally, you could write down possible inputs in a code comment to get a sense of what they’ll look like:

//inputs: 2, 4

What are the outputs?

What will this function return? In this case, the output will be one number that is the result of the two number inputs. Make sure you understand what your outputs will be.

Create some examples.

Once you have a grasp of the problem and know the possible inputs and outputs, you can start working on some concrete examples.

Examples can also be used as sanity checks to test your eventual problem. Most code challenge editors that you’ll work in (whether it’s in an interview or just using a site like Codewars or HackerRank) have examples or test cases already written for you. Even so, writing out your own examples can help you cement your understanding of the problem.

Start with a simple example or two of possible inputs and outputs. Let's return to our addition function.

Let’s call our function “add.”

What’s an example input? Example input might be:

// add(2, 3)

What is the output to this? To write the example output, we can write:

// add(2, 3) ---> 5

This indicates that our function will take in an input of 2 and 3 and return 5 as its output.

Create complex examples.

By walking through more complex examples, you can take the time to look for edge cases you might need to account for.

For example, what should we do if our inputs are strings instead of numbers? What if we have as input two strings, for example, add('a', 'b')?

Your interviewer might possibly tell you to return an error message if there are any inputs that are not numbers. If so, you can add a code comment to handle this case if it helps you remember you need to do this.

Your interviewer might also tell you to assume that your inputs will always be numbers, in which case you don’t need to write any extra code to handle this particular input edge case.

If you don’t have an interviewer and you’re just solving this problem, the problem might say what happens when you enter invalid inputs.

For example, some problems will say, “If there are zero inputs, return undefined.” For cases like this, you can optionally write a comment.

// check if there are no inputs.

// If no inputs, return undefined.

For our purposes, we’ll assume that our inputs will always be numbers. But generally, it’s good to think about edge cases.

Computer science professor Evans says to write what developers call defensive code. Think about what could go wrong and how your code could defend against possible errors.  

Before we move on to step 2, let’s summarize step 1, understand the problem:

-Read through the problem.

-What are the inputs?

-What are the outputs?

Create simple examples, then create more complex ones.

2. Devise a plan for solving the problem.

Next, devise a plan for how you’ll solve the problem. As you devise a plan, write it out in pseudocode.

Pseudocode is a plain language description of the steps in an algorithm. In other words, your pseudocode is your step-by-step plan for how to solve the problem.

Write out the steps you need to take to solve the problem. For a more complicated problem, you’d have more steps. For this problem, you could write:

// Create a sum variable.

Add the first input to the second input using the addition operator .

// Store value of both inputs into sum variable.

// Return as output the sum variable. Now you have your step-by-step plan to solve the problem. For more complex problems, professor Evans notes, “Consider systematically how a human solves the problem.” That is, forget about how your code might solve the problem for a moment, and think about how you would solve it as a human. This can help you see the steps more clearly.

3. Carry out the plan (Solve the problem!)

The next step in the problem-solving strategy is to solve the problem. Using your pseudocode as your guide, write out your actual code.

Professor Evans suggests focusing on a simple, mechanical solution. The easier and simpler your solution is, the more likely you can program it correctly.

Taking our pseudocode, we could now write this:

Professor Evans adds, remember not to prematurely optimize. That is, you might be tempted to start saying, “Wait, I’m doing this and it’s going to be inefficient code!”

First, just get out your simple, mechanical solution.

What if you can’t solve the entire problem? What if there's a part of it you still don't know how to solve?

Colt Steele gives great advice here: If you can’t solve part of the problem, ignore that hard part that’s tripping you up. Instead, focus on everything else that you can start writing.

Temporarily ignore that difficult part of the problem you don’t quite understand and write out the other parts. Once this is done, come back to the harder part.

This allows you to get at least some of the problem finished. And often, you’ll realize how to tackle that harder part of the problem once you come back to it.

Step 4: Look back over what you've done.

Once your solution is working, take the time to reflect on it and figure out how to make improvements. This might be the time you refactor your solution into a more efficient one.

As you look at your work, here are some questions Colt Steele suggests you ask yourself to figure out how you can improve your solution:

• Can you derive the result differently? What other approaches are there that are viable?
• Can you understand it at a glance? Does it make sense?
• Can you use the result or method for some other problem?
• Can you improve the performance of your solution?
• Can you think of other ways to refactor?
• How have other people solved this problem?

One way we might refactor our problem to make our code more concise: removing our variable and using an implicit return:

With step 4, your problem might never feel finished. Even great developers still write code that they later look at and want to change. These are guiding questions that can help you.

If you still have time in an interview, you can go through this step and make your solution better. If you are coding on your own, take the time to go over these steps.

When I’m practicing coding on my own, I almost always look at the solutions out there that are more elegant or effective than what I’ve come up with.

Wrapping Up

In this post, we’ve gone over the four-step problem-solving strategy for solving coding problems.

Let's review them here:

• Step 1: understand the problem.
• Step 2: create a step-by-step plan for how you’ll solve it .
• Step 3: carry out the plan and write the actual code.
• Step 4: look back and possibly refactor your solution if it could be better.

Practicing this problem-solving method has immensely helped me in my technical interviews and in my job as a developer. If you don't feel confident when it comes to solving coding problems, just remember that problem-solving is a skill that anyone can get better at with time and practice.

If you enjoyed this post, join my coding club , where we tackle coding challenges together every Sunday and support each other as we learn new technologies.

If you have feedback or questions on this post, feel free to tweet me @madisonkanna ..

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Say "Hello, World!" With C++ Easy C++ (Basic) Max Score: 5 Success Rate: 98.65%

Input and output easy c++ (basic) max score: 5 success rate: 94.01%, basic data types easy c++ (basic) max score: 10 success rate: 80.51%, conditional statements easy c++ (basic) max score: 10 success rate: 96.78%, for loop easy c++ (basic) max score: 10 success rate: 94.77%, functions easy c++ (basic) max score: 10 success rate: 97.45%, pointer easy c++ (basic) max score: 10 success rate: 97.23%, arrays introduction easy c++ (basic) max score: 10 success rate: 97.10%, variable sized arrays easy c++ (basic) max score: 30 success rate: 93.26%, attribute parser medium c++ (basic) max score: 35 success rate: 84.85%, cookie support is required to access hackerrank.

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Problem Solving with Computer

By Bipin Tiwari

Problem Solving is a scientific technique to discover and implement the answer to a problem. The computer is the symbol manipulating device that follows the set of commands known as program.

Program is the set of instructions which is run by the computer to perform specific task. The task of developing program is called programming.

Problem Solving Technique:

Sometimes it is not sufficient just to cope with problems. We have to solve that problems. Most people are involving to solve the problem. These problem are occur while performing small task or making small decision. So, Here are the some basic steps to solve the problems

Step 1: Identify and Define Problem

Explain you problem clearly as possible as you can.

Step 2: Generate Possible Solutions

• List out all the solution that you find. Don’t focus on the quality of the solution
• Generate the maximum number of solution as you can without considering the quality of the solution

Step 3: Evaluate Alternatives

After generating the maximum solution, Remove the undesired solutions.

Step 4: Decide a Solution

After filtering all the solution, you have the best solution only. Then choose on of the best solution and make a decision to make it as a perfect solution.

Step 5: Implement a Solution:

After getting the best solution, Implement that solution to solve a problem.

Step 6: Evaluate the result

After implementing a best solution, Evaluate how much you solution solve the problem. If your solution will not solve the problem then you can again start with Step 2 .

Algorithm is the set of rules that define how particular problem can be solved in finite number of steps. Any good algorithm must have following characteristics

• Input: Specify and require input
• Output:  Solution of any problem
• Definite:  Solution must be clearly defined
• Finite: Steps must be finite
• Correct:  Correct output must be generated

Advantages of Algorithms:

• It is the way to sole a problem step-wise so it is easy to understand.
• It uses definite procedure.
• It is not dependent with any programming language.
• Each step has it own meaning so it is easy to debug

Disadvantage of Algorithms:

• It is time consuming
• Difficult to show branching and looping statement
• Large problems are difficult to implement

The solution of any problem in picture form is called flowchart. It is the one of the most important technique to depict an algorithm.

Advantage of Flowchart:

• Easier to understand
• Helps to understand logic of problem
• Easy to draw flowchart in any software like MS-Word
• Complex problem can be represent using less symbols
• It is the way to documenting any problem
• Helps in debugging process

Disadvantage of Flowchart:

• For any change, Flowchart have to redrawn
• Showing many looping and branching become complex
• Modification of flowchart is time consuming

Symbol Used in Flowchart:

Example: Algorithm and Flowchart to check odd or even

Coding, Compiling and Execution

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