Question

How can we Add Two Numbers Without Using the Addition Operator?

Answer 1

For the sum of two numbers, we use the addition (+) operator. In these tricky C programs, we will write a C program to add two numbers without using the addition operator.

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int x, y;
  printf("Enter two number: ");
  scanf("%d %d",&x,&y);

  // method 1
  printf("%d\n", x-(-y));

  // method 2
  printf("%d\n", -(-x-y));

  // method 3
  printf("%d\n", abs(-x-y));

  // method 4
  printf("%d", x-(~y)-1);

  return 0;
}