odd_ones,我用了15个操作，要求12个操作，我尽力了。请大侠指教！

int odd_ones(unsigned int v)

{

? ? unsigned int v1=v>>16;

? ? unsigned int v2=v&0xffff;

? ? unsigned int v3=v2 ^ v1; // 16

? ? unsigned int v4=v3>>8;

? ? unsigned int v5=v3&0xff;

? ? unsigned int v6=v4 ^ v5; //8?

? ? unsigned int v7=v6>>4;

? ? unsigned int v8=v6&0xf;

? ? unsigned int v9=v7 ^ v8; //4?

? ? unsigned int v10=v9>>2;

? ? unsigned int v11=v9&0x3;

? ? unsigned int v12=v11 ^ v10; //2?

? ? unsigned int v13=v12>>1;

? ? unsigned int v14=v12 & 0x1;

? ? unsigned int v15=v13 ^ v14; //2?

? ? return v15;

}

?

原文地址：https://www.cnblogs.com/HKROnline-SyncNavigator/p/11055060.html