2015 Millet Summer Internship Pen Question _ understand binary (bitwise operation)

A total of 3 questions, the last is not AC out ...

There are 10 kinds of people in the world, one understands the binary system, one does not understand.
So you know the binary representation of two int32 integers m and n, how many bits are different?
Input Example:


1999 2299


Output Example:


7

This method is similar to the one seen in the beauty of programming.

Code:

#include <iostream>using namespace Std;int countbitdiff (int m, int n) {int sum=0;for (int i=0;i<32;i++) if (m> >i & 0x1)! = (N>>i & 0x1)) Sum++;return sum;} int main () {int N,m;cin>>n>>m;cout<<countbitdiff (n,m) <<endl;return 0;}

2015 Millet Summer Internship Pen Question _ understand binary (bitwise operation)