268.丢失的数字

/*
 * @lc app=leetcode.cn id=268 lang=typescript
 *
 * [268] 丢失的数字
 */

// @lc code=start
function missingNumber(nums: number[]): number {
	// 先升序排序
	let sortNums: number[] = nums.sort((a: number, b: number) => a - b);
	for (let i = 0; i < sortNums.length; i++) if (sortNums[i] != i) return i;
	return sortNums.length;
}

console.log(missingNumber([123, 1, 1232, 12, 0, 66]));

// @lc code=end