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腾讯&字节&leetcode34:在排序数组中查找元素的第一个和最后一个位置 #84

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@sisterAn

给定一个按照升序排列的整数数组 nums ,和一个目标值 target 。找出给定目标值在数组中的开始位置和结束位置。

你的算法时间复杂度必须是 O(logn) 级别。

如果数组中不存在目标值,返回 [-1, -1]

示例 1:

输入: nums = [5,7,7,8,8,10], target = 8
输出: [3,4]

示例 2:

输入: nums = [5,7,7,8,8,10], target = 6
输出: [-1,-1]

附赠leetcode地址:leetcode

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