LittleSeedling的博客

如何求一个二进制的最低非零位？去掉最低非零位？求最低非零位`x & (-x)`去掉最低非零位`x&(x-1)` 求最低非零位x & (-x) int x = 0b00001010; //-x = 0b11110110 int lsb= ( x == INT_MIN ? x: x& (-x) ); // lsb(lowestSignificantBit) >>> lsb = 0b0000 0010 去掉最低非零位x&(x-1) int x =

/一维vectorvector*v=newvector();//二维vectorvector*v2=newvector();//一维vectorvector*v=newvector();