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4. 寻找两个正序数组的中位数

 2 years ago
source link: https://leetcode.cn/problems/median-of-two-sorted-arrays/
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4. 寻找两个正序数组的中位数

给定两个大小分别为 m 和 n 的正序（从小到大）数组 nums1 和 nums2。请你找出并返回这两个正序数组的 中位数 。

算法的时间复杂度应该为 O(log (m+n)) 。

示例 1：

输入：nums1 = [1,3], nums2 = [2]
输出：2.00000
解释：合并数组 = [1,2,3] ，中位数 2

示例 2：

输入：nums1 = [1,2], nums2 = [3,4]
输出：2.50000
解释：合并数组 = [1,2,3,4] ，中位数 (2 + 3) / 2 = 2.5

提示：

  • nums1.length == m
  • nums2.length == n
  • 0 <= m <= 1000
  • 0 <= n <= 1000
  • 1 <= m + n <= 2000
  • -106 <= nums1[i], nums2[i] <= 106

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