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raven38/lowbit.cpp

Created October 6, 2014 14:26
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最下位ビットを見つけるだけ
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lowbit.cpp
// 1になってる最下位ビット以下を返す 10010なら10
// 10010 & 01111 から 00010
int lowbit(int x){
return x&-x;
}
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