位操作-leetcode 461 Hamming Distance

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原题链接:Hamming Distance


题解:

class Solution {public:    int hammingDistance(int x, int y) {        /*        Time Complexity:O(1)               Space Complexity:O(1)        */        x^=y;        int count=0;        while(x){            count+=x&1;            x=x>>1;        }        return count;    }};


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