Add

In this program, int a,b,c statement declares 3 variables named as a,b & c . The 2 values
are entered by user because of scanf statement & stored in a & b . Now, c variable 
stores the sum of a & b because of the statement c = a+b . Then the resulting sum is displayed on
screen using printf statement .
For more information & explanation of this program click here..  

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Program to add two numbers.

#include<stdio.h>

#include<conio.h>

void main()

{       int a,b,c;

clrscr();

printf("program to add 2 variables");

printf("\n enter value of a : ");

scanf("%d",&a);

printf(" enter value of b : ");

scanf("%d",&b);

c = a+b;

printf("sum of a & b = %d",c);

getch();

}