
有想法,但是沒有這個(gè)簡(jiǎn)練

Java,用到了庫函數(shù)
public class Solution {
public int findComplement(int num) {
return ~num+(Integer.highestOneBit(num)<<1);
}
}
public class Solution {
public int findComplement(int num) {
return ~num+(Integer.highestOneBit(num)<<1);
}
}