【一天一道LeetCode】#109. Convert Sorted List to Binary Search Tree
一天一道LeetCode本系列文章已全部上传至我的github,地址:ZeeCoder‘s Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处(一)题目Given a singly linked list where elements are sorted in ...
[Leetcode] merge sorted array 合并数组
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 to hold additional elements f...
There are two sorted arrays nums1 and nums2 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)).
解题思路:合并两个数组,创建一个 Map对象,用以存放排好顺序的键值对,键为序号,值为数组值,中位数的结果分两种情况讨论:1、m+n为奇数:(m+n)/2为中位数2、m+n为偶数:(((m+n)/2-1)+(m+n)/2)/2为中位数public class FindMedianNum {publi...
LeetCode题解之Squares of a Sorted Array
1、题目描述2、问题分析使用过两个计数器。3、代码 class Solution { public: vector<int> sortedSquares(vector<int>& A) { int left = , right = A.size(...
LeetCode 笔记系列九 Search in Rotated Sorted Array
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 ...
[leetcode]23. Merge k Sorted Lists归并k个有序链表
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Input: [ 1->4->5, 1->3->4, 2->...
Merge Two Sorted Lists - LeetCode
目录题目链接注意点解法小结题目链接Merge Two Sorted Lists - LeetCode注意点两个链表长度可能不一致解法解法一:先比较两个链表长度一致的部分,多余的部分直接加进答案链表即可。时间复杂度为O(n)/** * Definition for singly-linked list...
[LeetCode] 83. Remove Duplicates from Sorted List ☆(从有序链表中删除重复项)
描述Given a sorted linked list, delete all duplicates such that each element appear only once.Example 1:Input: 1->1->2Output: 1->2Example 2:Inp...
乘风破浪:LeetCode真题_023_Merge k Sorted Lists
乘风破浪:LeetCode真题_023_Merge k Sorted Lists一、前言上次我们学过了合并两个链表,这次我们要合并N个链表要怎么做呢,最先想到的就是转换成2个链表合并的问题,然后解决,再优化一点的,就是两个两个合并,当然我们也可以一次性比较所有的元素,然后一点点的进行合并等等。二、M...
[LeetCode] Convert Sorted List to Binary Search Tree 将有序链表转为二叉搜索树
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.For this problem, a height-balanced binar...
[leetcode]80. Remove Duplicates from Sorted Array II有序数组去重(单个元素可出现两次)
Given a sorted array nums, remove the duplicates in-place such that duplicates appeared at most twice and return the new length.Do not allocate extra ...
Convert Sorted List to Binary Search Tree ------C++ 递归创建平衡二叉查找树
有序链表0->1->2->3->4->5转换为一个二叉排序树。我们在此创建一个平衡二叉排序树1.先找链表到中间的节点2.中间节点的val创建一个新的树节点TreeNode3.将链表断裂为2部分4.递归创建左子树和右子树#include<iostream>#i...
【LeetCode】Find Minimum in Rotated Sorted Array 找到旋转后有序数组中的最小值
本文为大便一箩筐的原创内容,转载请注明出处,谢谢:http://www.cnblogs.com/dbylk/p/4032570.html原题:Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e...
【LeetCode21】Merge Two Sorted Lists★
1.题目描述:2.解题思路:本题是要合并两个已经有序的单链表,思路很简单,有两种方法:非递归和递归。3.Java代码:(1)非递归:为方便操作,定义一个辅助的头节点,然后比较原来两个链表的头节点,将小的那一个加入到合并链表,最后,当其中一个链表为空时,直接将另一个链表接入到合并链表即可。 //pub...
Leetcode: Convert sorted list to binary search tree (No. 109)
Sept. 22, 2015学一道算法题, 经常回顾一下. 第二次重温, 决定增加一些图片, 帮助自己记忆. 在网上找他人的资料, 不如自己动手. 把从底向上树的算法搞通俗一些.先做一个例子:9/22/2015Go over one example to build some muscle memo...
26 Remove Duplicates from Sorted Array
def removeDuplicates(nums): leng = len(nums) k = 0 #if leng ==0: #return False for x in range(1,leng) : print(k,x) prin...
[Array] Remove Duplicates from Sorted Array
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 fo...
Java [Leetcode 88]CMerge Sorted Array
题目描述:Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.Note:You may assume that nums1 has enough space (size...
leetcode 108 Convert Sorted Array to Binary Search Tree ----- java
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.给一个排好序的数组,然后求搜索二叉树其实就是二分法,不难。/** * Definition for a b...
【LeetCode】108. Convert Sorted Array to Binary Search Tree 解题报告 (Java & Python)
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/目录题目描述题目大意解题方法Java解法Python解法日期题目地址:https://leetcode.com/problems/convert-sorted-array-to-binary...