C Examples

Powerful, efficient, and the foundation of modern systems programming.

Example 1: Adding two Numbers

Code

#include 
    int main() {
        int a, b, sum;
    
        // Taking input from user
        printf("Enter first number: ");
        scanf("%d", &a);
    
        printf("Enter second number: ");
        scanf("%d", &b);
    
        // Calculating sum
        sum = a + b;
    
        // Displaying output
        printf("Sum is: %d\n", sum);
    
        return 0;
    }

Input

Enter first number: 10  
Enter second number: 8

Output

Sum is: 18

Code Explanation

scanf() takes input and stores it in variables a and b.

sum = a + b performs addition.

printf() prints the result using %d for integers.