Given an array of integers, every element appears twice except for one. Find that single one.

最新推荐文章于 2020-05-07 11:15:44 发布

转载最新推荐文章于 2020-05-07 11:15:44 发布 · 3.5k 阅读

本文介绍了一种使用XOR操作符来找出数组中唯一出现一次的元素的方法。通过遍历数组并对每个元素应用XOR操作，可以有效地找到那个唯一的元素。

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class Solution {
public:
    int singleNumber(int A[], int n) {
        int n1 = 0;
        for(int i = 0;i<n;++i)
        {
            n1^=A[i];
        }
        return n1;
    }
};

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