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C program to add two integer numbers

Problem Description

This simple C program takes two integer numbers from the user and print their sum on the screen.

C program to add two integer numbers - Source code

int main() {
   int a, b, sum;

   printf("\nEnter the two numbers: ");
   scanf("%d %d", &a, &b);

   sum = a + b;

   printf("Sum of %d and %d is %d", a,b,sum);


Program Output

Case 1:

Enter the two numbers: 456
Sum of 456 and 26 is 482

Case 2:

Enter the two numbers: 721
Sum of 721 and 457 is 1178

Program Explanation

1. Three integers variables a, b and sum are declared.

2. User is asked to input two integers to calculate the sum. Entered numbers are stored in a and b variables using the scanf function.

3. Sum of a and b is obtained using arithmetic Addition(+) operator.