5 Ways To Add Two Numbers in C Programming

C Program To Add Two Numbers

Learn How To Add Two Numbers in C Programming Language. Two Integer variables can be added in different ways. Here, we have described different methods for Addition of Two Numbers in C Programming.

Note: This Code To Calculate Sum of Two Integers in C Programming Language is developed in Linux Ubuntu Operating System and compiled with GCC Compiler.

Also Read: C Program To Calculate Roots of a Quadratic Equation

Add Two Numbers using Hard Coded Values in C Programming

#include<stdio.h>

int main()

{

int var1, var2, sum;

var1 = 20;

var2 = 30;

sum = var1 + var2;

printf("Sum of Two Numbers:\t %d\n", sum);

return 0;

}

C Program To Add Two Numbers using User Defined Values

#include<stdio.h>

int main()

{

int var1, var2, sum;

printf("\nAdd First Number:\t");

scanf("%d", &var1);

printf("\nAdd Second Number:\t");

scanf("%d", &var2);

sum = var1 + var2;

printf("Sum of Two Numbers:\t %d", sum);

printf("\n");

return 0;

}

Calculate Sum of Two Integers using Functions in C Programming

#include<stdio.h>

int addition(int r, int s)

{

int temp = r + s;

return temp;

}

int main()

{

int var1, var2, sum;

printf("\nAdd First Number:\t");

scanf("%d", &var1);

printf("\nAdd Second Number:\t");

scanf("%d", &var2);

sum = addition(var1, var2);

printf("Sum of Two Numbers:\t %d", sum);

printf("\n");

return 0;

}

C Program To Find Addition of Two Numbers using Pointers

#include<stdio.h>

int addition(int *m, int *n);

int main()

{

int var1, var2, sum;

printf("\nAdd First Number:\t");

scanf("%d", &var1);

printf("\nAdd Second Number:\t");

scanf("%d", &var2);

sum = addition(&var1, &var2);

printf("Sum of Two Numbers:\t %d", sum);

printf("\n");

return 0;

}

int addition(int *m, int *n)

{

int result;

result = *m + *n;

return result;

}

C Program To Find Sum of Two Numbers without using Plus Operator

#include<stdio.h>

int main()

{

int var1, var2;

printf("\nAdd First Number:\t");

scanf("%d", &var1);

printf("\nAdd Second Number:\t");

scanf("%d", &var2);

while (var2 > 0)

{

var1++;

var2--;

}

printf("Sum of Two Numbers:\t %d", var1);

printf("\n");

return 0;

}

Also Read: C Program To Replace A Character in a String

Output

If you have any compilation errors or doubts in this C Programs To Find Addition of Two Integers, let us know about in the Comment Section below.

2 thoughts on “Add Two Numbers C Program”

Rahul Shetty July 31, 2016
Can we add two numbers in c programming using Dynamic Memory Allocation with pointers?
Reply ↓
Ayug Khan September 9, 2016
I really felt Addition of Two Numbers without Plus Operator was much useful and much needed. The Increment and Decrement operator manipulation is too good.
Reply ↓

Add Two Numbers C Program

C Program To Add Two Numbers

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