C++ Program to subtract two numbers without using minus (' - ') operator

/*logic to add two numbers in c++ without using plus operator*/

//for positive output use if condition this code will show negative output 

#include<stdio.h>

using namespace std;
int main()
 {
       int a=25,j=200,i;
      for(i=0;i<j;i++)
           {
             a--;
            }
      cout<<a<<endl;
 }

/* output will=> -175 */