Wenju-Huang的博客

LeetCode-Delete Node in a Linked List*Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -> 3 -> 4 and you

题目： Given a singly linked list, determine if it is a palindrome.Follow up: Could you do it in O(n) time and O(1) space?解释： 判断一个数是否为回文数（即这个数顺着看和倒着看相同，如1234321）。 一开始想的是用堆栈实现，但空间复杂度度不符合要求，一时想不到思路。虽然提示

在准备国电，忙里偷闲刷了一道题，还是简单的链表题（有空再学习另外类型了）； 题目：Linked List Cycle Given a linked list, determine if it has a cycle in it.Follow up: Can you solve it without using extra space?解释：要求在不开辟其他内存的前提下判断一个链表是不是循环列

题目：LeetCode-Linked List Cycle IIGiven a linked list, return the node where the cycle begins. If there is no cycle, return null.Follow up: Can you solve it without using extra space?解释： 做了1就忍不住要做2

国电结束了，终于又有时间来刷题了，不过，这么多天不刷，有点不想再刷了的感觉。 今天来一道简单的，寻找丑数。 Write a program to check whether a given number is an ugly number.Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For

LeetCode-Median of Two Sorted Arrays想不到距离上次刷LeetCode已经有两年了，惭愧惭愧。希望这次能坚持刷下去，先全部刷完LeetCode再刷其他的oj系统。博客以后只用来整理经典、有意义的问题今天写的是一道经典的查找题Median of Two Sorted Arrays： There are two sorted arrays nums1 and num