剑指offer——面试题15.2:判断两个整数m和n的二进制中相差多少位

#include"iostream"
using namespace std;

int CountDifferentBit(int m,int n)
{
    int cnt=0,diff=m^n;
    while(diff)
    {
        cnt++;
        diff=(diff-1)&diff;
    }
    return cnt;
}

int main()
{
    int m,n;
    while(cin>>m>>n)
    {
        cout<<CountDifferentBit(m,n)<<endl;
    }
    return 0;
}