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191. Number of 1 Bits

191. Number of 1 Bits

作者: hyhchaos | 来源:发表于2016-12-06 11:23 被阅读13次

Java

public class Solution {
    // you need to treat n as an unsigned value
    public int hammingWeight(int n) {
        int count=0;
        while(n!=0)
        {
            n=n&(n-1);
            count++;
        }
        return count;
    }
}

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