题目: 合并排序数组 合并两个排序的整数数组A和B变成一个新的数组. 样例 给出A=[1,2,3,4],B=[2,4,5,6],返回 [1,2,2,3,4,4,5,6] 挑战 你能否优化你的算法,如果其中一个数组很大而另一个数组很小? 解题: 利用Java的ArrayList很简单的,时间复杂度O(n+m)两个数组都要遍历一遍,对应两个数组长度差别很大的情况,效率就低了 Java程序: class Solution { /** * @param A and B: sorted integer a…

6. Merge Two Sorted Arrays Description Merge two given sorted integer array A and B into a new sorted integer array. Example A=[1,2,3,4] B=[2,4,5,6] return [1,2,2,3,4,4,5,6] Challenge How can you optimize your algorithm if one array is very large and…

题目: 合并排序数组 II 合并两个排序的整数数组A和B变成一个新的数组. 样例 给出A = [1, 2, 3, empty, empty] B = [4,5] 合并之后A将变成[1,2,3,4,5] 注意 你可以假设A具有足够的空间(A数组的大小大于或等于m+n)去添加B中的元素. 解题: 这里给的是两个数组,上题给的是ArrayList格式,比较好处理,重新定义一个长度m+n的数组,但是A的数组长度是m+n,可以从后面将元素插入的A数组中 class Solution { /** * @pa…

Given k sorted integer arrays, merge them into one sorted array. Example Given 3 sorted arrays: [ [1, 3, 5, 7], [2, 4, 6], [0, 8, 9, 10, 11]] return [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]. Challenge Do it in O(N log k). N is the total number of integ…

Question: We have 2 sorted arrays and we want to combine them into a single sorted array. Input: arr1[] = 1, 4, 6, 8, 13, 25    ||     arr2[] = 2, 7, 10, 11, 19, 50Output: 1, 2, 4, 6, 7, 8, 10, 11, 13, 19, 50 最简单的方法之一就是把两个数组复制到一个新的数组中,对这个新的数组进行排序.但这样…

题目描述: 分析:题目的意思是把数组A和数组B合并到数组A中,且数组A有足够的空间容纳A和B的元素,合并后的数组依然是有序的. 我的代码: public class Solution { /* * @param A: sorted integer array A which has m elements, but size of A is m+n * @param m: An integer * @param B: sorted integer array B which has n eleme…

描述 Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: Input: [   1->4->5,   1->3->4,   2->6 ] Output: 1->1->2->3->4->4->5->6 思路 借鉴Merge Two Sorted Lists的解决思路,对两个数…

21. 合并两个有序链表 21. Merge Two Sorted Lists 题目描述 将两个有序链表合并为一个新的有序链表并返回.新链表是通过拼接给定的两个链表的所有节点组成的. LeetCode21. Merge Two Sorted Lists 示例: 输入: 1->2->4, 1->3->4 输出: 1->1->2->3->4->4 Java 实现 ListNode 类 class ListNode { int val; ListNode n…

Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: Input: 1->2->4, 1->3->4 Output: 1->1->2->3->4->4 将两个有序链表合并为一个新的有序链表并返回.新链表是通过…

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,0,1,2,2,5,6] might become [2,5,6,0,0,1,2]). You are given a target value to search. If found in the array return true, otherwise return false. Ex…