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missing number solution
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missing-number/limlimjo.js

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/**
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* @param {number[]} nums
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* @return {number}
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*/
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var missingNumber = function (nums) {
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// 1. nums 정렬
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nums.sort((a, b) => a - b);
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// 2. for문 돌며 빠진 숫자 찾기
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for (let i = 0; i <= nums.length; i++) {
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if (nums[i] !== i) {
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return i;
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}
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}
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};
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// 시간 복잡도: O(nlogn)
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// 공간 복잡도: O(1)

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