How to add two numbers without using ++ or + or another arithmetic operator

Question

How do I add two numbers without using ++ or + or any other arithmetic operator?

It was a question asked a long time ago in some campus interview. Anyway, today some

Answer 1

Code to implement add,multiplication without using +,* operator; for subtraction pass 1's complement +1 of number to add function

#include

unsigned int add(unsigned int x,unsigned int y)
{
         int carry=0;
    while (y != 0)
    {

        carry = x & y;  
        x = x ^ y; 
        y = carry << 1;
    }
    return x;
}
int multiply(int a,int b)
{
    int res=0;
    int i=0;
    int large= a>b ? a :b ;
    int small= a