(BITMANIPULATION)findingsquareofanumberwithoutusinganyoperator.cpp

#include <bits/stdc++.h> 
using namespace std; 
  
// Function to divide a by b and 

int square(int n){
    
    if(n==0)
    return 0;
    
    if(n<0)
    n=-n;
    
    int x=n>>1;
    
    if(n & 1)
    return ((square(x) << 2) + (x << 2) + 1);
    else
    return (square(x) << 2);
} 
  
// Driver code 
int main() { 
 cout<<square(2);
 
  
  return 0; 
}