C Programming Examples

Explore our collection of C programming examples and code snippets. Learn by doing with practical examples you can run directly in our online compiler.

Basic Programs

15 examples

Essential C programs for beginners

Hello WorldCalculatorPrime Number Check+2 more

Loops and Control Flow

12 examples

Programs demonstrating loops and conditional statements

For LoopWhile LoopDo-While Loop+2 more

Functions and Recursion

10 examples

Function definitions, calls, and recursive programming

Function BasicsRecursive FunctionsFunction Pointers+2 more

Arrays and Strings

18 examples

Working with arrays, strings, and character manipulation

Array OperationsString FunctionsCharacter Arrays+2 more

Data Structures

8 examples

Implementation of common data structures in C

Linked ListsStacksQueues+2 more

Algorithms

14 examples

Common algorithms and sorting techniques

Bubble SortQuick SortBinary Search+2 more

Featured Examples

Hello World Program

The classic first program in C programming.

Beginner

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}

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Fibonacci Series

Generate Fibonacci series up to n terms.

Beginner

#include <stdio.h>

int main() {
    int n, first = 0, second = 1, next;
    
    printf("Enter number of terms: ");
    scanf("%d", &n);
    
    printf("Fibonacci Series: ");
    for (int i = 0; i < n; i++) {
        if (i <= 1)
            next = i;
        else {
            next = first + second;
            first = second;
            second = next;
        }
        printf("%d ", next);
    }
    printf("\n");
    return 0;
}

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Bubble Sort

Sort an array using bubble sort algorithm.

Intermediate

#include <stdio.h>

void bubbleSort(int arr[], int n) {
    for (int i = 0; i < n-1; i++) {
        for (int j = 0; j < n-i-1; j++) {
            if (arr[j] > arr[j+1]) {
                int temp = arr[j];
                arr[j] = arr[j+1];
                arr[j+1] = temp;
            }
        }
    }
}

int main() {
    int arr[] = {64, 34, 25, 12, 22, 11, 90};
    int n = sizeof(arr)/sizeof(arr[0]);
    
    printf("Original array: ");
    for (int i = 0; i < n; i++)
        printf("%d ", arr[i]);
    printf("\n");
    
    bubbleSort(arr, n);
    
    printf("Sorted array: ");
    for (int i = 0; i < n; i++)
        printf("%d ", arr[i]);
    printf("\n");
    
    return 0;
}

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