The Hamming distance between two integers is the number of positions at which the corresponding bits are different.
Given two integers x
and y
, return the Hamming distance between them.
Example 1:
Input: x = 1, y = 4 Output: 2 Explanation: 1 (0 0 0 1) 4 (0 1 0 0) ↑ ↑ The above arrows point to positions where the corresponding bits are different.
Example 2:
Input: x = 3, y = 1 Output: 1
Constraints:
0 <= x, y <= 231 - 1
两个整数之间的 汉明距离 指的是这两个数字对应二进制位不同的位置的数目。
给你两个整数 x
和 y
,计算并返回它们之间的汉明距离。
示例 1:
输入:x = 1, y = 4 输出:2 解释: 1 (0 0 0 1) 4 (0 1 0 0) ↑ ↑ 上面的箭头指出了对应二进制位不同的位置。
示例 2:
输入:x = 3, y = 1 输出:1
提示:
0 <= x, y <= 231 - 1
Language | Runtime | Memory | Submission Time |
---|---|---|---|
typescript | 64 ms | 42.5 MB | 2023/07/23 13:15 |
function hammingDistance(x: number, y: number): number {
let res = 0;
while (x > 0 && y > 0) {
const curX = x & 1;
const curY = y & 1;
if (curX !== curY) {
res++;
}
x = x >> 1;
y = y >> 1;
}
while (x > 0) {
if (x & 1) {
res++;
}
x = x >> 1;
}
while (y > 0) {
if (y & 1) {
res++;
}
y = y >> 1;
}
return res;
};
No notes