11 Add two number with out oprat0r

#include<stdio.h>
int main()
{

    int a,b;
    int sum;
    printf("Enter any two integer:\n");
    scanf("%d%d",&a,&b);
    printf("a=%d b=%d\n",a,b);
    //sum=a-(-b);
    sum=a-~b-1;
printf("sum of two integers:%d",sum);
return 0;

}