#力扣：136. 只出现一次的数字@FDDLC

136. 只出现一次的数字 - 力扣（LeetCode）

一、Java

class Solution {public int singleNumber(int[] nums) {int ans = 0;for(int num: nums) ans ^= num;return ans;}
}

二、C++

class Solution {
public:int singleNumber(vector<int>& nums) {int ans = 0;for(int num: nums) ans ^= num;return ans;}
};

三、Python

class Solution:def singleNumber(self, nums: List[int]) -> int:ans = 0for num in nums:ans ^= numreturn ans

四、JavaScript

var singleNumber = function(nums) {let ans = 0;for (let i in nums) {ans ^= nums[i];}return ans;
}

var singleNumber = function(nums) {let ans = 0;for (let num of nums) ans ^= num;return ans;
}

var singleNumber = function(nums) {return nums.reduce((a, b) => a ^ b, 0);
}

五、Go

package mainfunc singleNumber(nums []int) int {ans := 0for _, v := range nums {ans ^= v}return ans
}