随笔分类 - [LeetCode 题解]
LeetCode 个人的题解,加一些愚见~欢迎探讨
摘要:前言 【LeetCode 题解】系列传送门: " http://www.cnblogs.com/double win/category/573499.html " 题目链接 "54. Spiral Matrix" 题目描述 Given a matrix of m x n elements (m ro
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: " http://www.cnblogs.com/double win/category/573499.html " 题目描述 Suppose an array sorted in ascending order is rotated at some p
阅读全文
摘要:链表在笔试面试中都是出镜率极高的一种数据结构。 由于链表具有结构简单,代码量较少,变化多,可以较为全面的考察应聘者的逻辑思考能力以及应变能力的特点,而备受面试官青睐。 在本节中,我将Leetcode中链表相关的题目即解决思路列举一下,希望对大家有所帮助。 按照LeetCode添加题目的时间可以看到链
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 2. 题意 寻找两个链表的交点。 提示: 1. 如果两个链表没有交集,那么返回NULL。 2. 链表的结果不能发生变化。 3. 两
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Say you have an array for which the ith element is th...
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all th...
阅读全文
摘要:[Leetcode 题解]:Palindrome Number
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Given a linked list, swap ever...
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Given a set of candidate numbers (C) and a target numb...
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Given a linked list, reverse the nodes of a linked li...
阅读全文
摘要:二叉树的先序遍历,采用递归以及非递归方式
阅读全文
摘要:前言 【LeetCode 题解】系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Given a binary tree, check whether it is a mirror ...
阅读全文
摘要:Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?题意:...
阅读全文
摘要:Given a list, rotate the list to the right bykplaces, wherekis non-negative.For example:Given1->2->3->4->5->NULLandk=2,return4->5->1->2->3->NULL.题意:翻转...
阅读全文
摘要:Given a linked list and a valuex, partition it such that all nodes less thanxcome before nodes greater than or equal tox.You should preserve the origi...
阅读全文
摘要:Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
阅读全文
摘要:Given a binary tree, flatten it to a linked list in-place.For example,Given 1 / \ 2 5 / \ \ 3 4 6The flattened t...
阅读全文
摘要:Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.题意:给定一个有序的链表,将其转换成平衡二叉搜索树思路: 二分法要构建一个平衡二叉...
阅读全文
摘要:Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2, return1->2.Given1->1->2->3->3, retu...
阅读全文
摘要:Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity.题意:对k个有序的链表进行归并排序。并分析其复杂度。/** * Definition for singly-...
阅读全文