原创 LeetCode:Linked List Cycle I & II
Linked List Cycle Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using
2020-06-15 22:06:36
原创 LeetCode:Regular Expression Matching
Regular Expression Matching Implement regular expression matching with support for '.' and '*'. '.' Matches any
2020-06-15 22:06:26
原创 LeetCode:Climbing Stairs
You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In
2020-02-20 15:42:37
原创 LeetCode:Simplify Path
Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home/", => "/home"path = "/a/./b/..
2020-02-20 15:42:37
原创 LeetCode:Subsets I
Given a set of distinct integers, S, return all possible subsets. Note: Elements in a subset must be in non-descendin
2020-02-20 15:42:37
原创 LeetCode:Maximum Subarray
Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example,
2020-02-20 15:42:37
原创 LeetCode:Unique Binary Search Trees
Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3,
2020-02-20 15:42:37
原创 LeetCode:Remove Duplicates from Sorted List
Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 1->1->2
2020-02-20 15:42:37
原创 LeetCode:Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the
2020-02-20 15:42:36
原创 LeetCode:Best Time to Buy and Sell Stock I & II & III
Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to
2020-02-20 15:42:36
原创 LeetCode:Rotate List
Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given 1->2->3->4->5->NU
2020-02-20 15:42:36
原创 LeetCode:Search Insert Position
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it wo
2020-02-20 15:42:36
原创 LeetCode:Populating Next Right Pointers in Each Node I & II
Populating Next Right Pointers in Each Node Given a binary tree struct TreeLinkNode { TreeLinkNode *le
2020-02-20 15:42:36
原创 LeetCode:Single Number I && II
Given an array of integers, every element appears twice except for one. Find that single one. 題目很直接，直接建哈希表，遍歷，在表中就刪除元素
2020-02-20 15:42:36
原创 Python:正則表達式
轉載自：http://www.cnblogs.com/huxi/archive/2010/07/04/1771073.html 1. 正則表達式基礎 1.1. 簡單介紹 正則表達式並不是Python的一部分。正則表達式是用於
2018-09-03 06:57:24
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