LeetCode 136. Single Number

Solution1：我的答案
还好异或的性质没记错，还好，还好

class Solution {
public:int singleNumber(vector<int>& nums) {if (nums.size() == 1)return nums[0];int res = nums[0];for (int i = 1; i < nums.size(); i++)res = res^nums[i];return res;}
};

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【异或】LeetCode 136. Single Number

LeetCode 136. Single Number

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