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#include <iostream> using namespace std; int Grail(int x) { int N=0; while(x) { x=x&(x-1); N++; } return N; } int main() { cout<<Grail(7)<<endl; //0111 //0110 //0101 //0100 //0100 //0011 return 0; }
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原文地址:http://blog.csdn.net/liuhuiyan_2014/article/details/45037161