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알고리즘/LeetCode

[Leetcode][Javascript][Easy] 136. Single Number

by Benjamin_Choi 2021. 7. 7.
/**
 * https://leetcode.com/problems/single-number/
 * @param {number[]} nums
 * @return {number}
 */
 var singleNumber = function(nums) {
    var answer = nums[nums.length-1];
    for (let i = 0; i < nums.length - 1 ; i++) {
        if (nums.indexOf(nums[i], i+1) === -1 && nums.indexOf(nums[i]) === i) {
            answer = nums[i];
            break;
        }
    }    
    return answer;
};

 

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