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LeetCode Valid Parentheses 有效括号
1 class Solution { 2 public: 3 void push(char c){ //插入结点 4 struct node *n=new struct node; 5 n->nex=0; 6 n->ch=c; 7 n->pre=las...
分类:其他好文   时间:2014-11-19 00:28:28    阅读次数:167
Valid Sudoku
Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with ...
分类:其他好文   时间:2014-11-19 00:00:09    阅读次数:386
Length of Last Word输出最后单词的字母个数
Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last word in the string.If the last word doe...
分类:其他好文   时间:2014-11-18 23:56:33    阅读次数:254
Valid Parentheses
题目描述: Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" a...
分类:其他好文   时间:2014-11-18 11:54:07    阅读次数:173
Longest Substring Without Repeating Characters
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
分类:其他好文   时间:2014-11-17 22:29:25    阅读次数:242
ruby安装插件报错
有时候我们需要安装ruby插件的时候,会报如下错误:ERROR: Could not find a valid gem 'rdiscount' (>= 0), here is why: Unable to download data from https://rubygems.o...
分类:其他好文   时间:2014-11-17 17:34:59    阅读次数:221
[Leetcode] Valid Sudoku
Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with ...
分类:其他好文   时间:2014-11-17 17:18:49    阅读次数:183
LeetCode Validate Binary Search Tree
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...
分类:其他好文   时间:2014-11-17 14:02:09    阅读次数:146
Validate Binary Search Tree
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...
分类:其他好文   时间:2014-11-17 09:12:02    阅读次数:179
Determine whether an integer is a palindrome. Do this without extra space.
看到这个题目的时候,首先不认识 Determine这个单词,英文不好没办法,查了下是确认的意思,然后不懂 palindrome这个单词, 查了下是回文的意思。 问题是 回文是个什么东西,官方解释: A palindrome is a word, phrase, number, or other sequence of characters which reads the same b...
分类:其他好文   时间:2014-11-17 01:45:30    阅读次数:220
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