leetcode 191. 位1的个数（java & python3）

java：
public class Solution {
// you need to treat n as an unsigned value
public int hammingWeight(int n) {
int res = 0;
for(int i = 0; i < 32; i++){ if((n & (1 << i)) != 0){ res ++; } } return res; } } public class Solution { // you need to treat n as an unsigned value public int hammingWeight(int n) { int res = 0; while(n != 0){ res ++; n &=

leetcode 191. 位1的个数（java & python3）最先出现在Python成神之路。