Median of Two Sorted Array leetcode java

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Median of Two Sorted Array leetcode java

题目: There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 题解: 首先我们先明确什么是median,即中位数. 引用Wikipedia对中位数的定义: 计算有限个数的数据的中位数的方法是:把所有的同类数据按照大小的顺序排列…

Find Minimum in Rotated Sorted Array leetcode java

题目: Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). Find the minimum element. You may assume no duplicate exists in the array. 解题思路: 首先假设一个sorted没有rotated的数组[1,2,3],假设我们通过一个…

Remove Duplicates From Sorted Array leetcode java

算法描述: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array…

Merge Sorted Array leetcode java（回顾MergeTwoArray和MergeTwoLinkedList）

题目: Given two sorted integer arrays A and B, merge B into A as one sorted array. Note: You may assume that A has enough space (size that is greater or equal to m + n) to hold additional elements from B. The number of elements initialized in A and B a…

Search in Rotated Sorted Array leetcode java

题目: Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to search. If found in the array return its index, otherwise return -1. You may assume no du…