single-number-ii

时间限制:1秒 空间限制:32768K

题目描述

Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?

我的代码

class Solution {
public:
    int singleNumber(int A[], int n) {
        int ones=0, twos=0,threes=0;
        for(int i=0;i

运行时间:4ms
占用内存:592k

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