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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:2014-08-18 13:02:02    阅读次数:209
Restore IP Addresses
Given a string containing only digits, restore it by returning all possible valid IP address combinations....
分类:其他好文   时间:2014-08-17 22:48:32    阅读次数:217
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:2014-08-17 21:11:02    阅读次数:213
[leetcode]Valid Number
Valid NumberValidate if a given string is numeric.Some examples:"0"=>true" 0.1 "=>true"abc"=>false"1 a"=>false"2e10"=>trueNote:It is intended for the ...
分类:其他好文   时间:2014-08-16 01:01:49    阅读次数:195
LeetCode "Valid Sudoku"
Here another memory for speed implementation:class Solution {public: bool isValidSudoku(vector > &board) { size_t row_cnt = board.size(); ...
分类:其他好文   时间:2014-08-15 14:18:48    阅读次数:194
[LeetCode系列]括号生成问题
给定n, 返回所有匹配的n对括号的可能形式. 如给定n= 3, 一个解集是:"((()))", "(()())", "(())()", "()(())", "()()()"本题解法的思路是使用栈seq保存经历的字符串状态;使用栈valid保存对应的字符串中有效的括号对个数;当seq不为空时(即回溯未...
分类:其他好文   时间:2014-08-14 19:42:29    阅读次数:169
leetcode -- Valid Parentheses
不要因为走的太远而忘记我们为什么出发[问题描述]Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets mu...
分类:其他好文   时间:2014-08-14 01:00:57    阅读次数:160
Valid Palindrome
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a canal: Pana...
分类:其他好文   时间:2014-08-14 00:59:37    阅读次数:195
c#中对"Cross-thread operation not valid"错误的处理办法
概要Windows Forms 控件通常不是thread-safe(直接或间接继承于System.Windows.Forms.Control),因此.NET Framework为防止multithread下对控件的存取可能导致控件状态的不一致,在调试时,CLR-Debugger会抛出一个Invali...
分类:其他好文   时间:2014-08-13 21:39:57    阅读次数:269
Valid Sudoku 和 Sudoku Solver
题目一: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 the character '.'. ...
分类:其他好文   时间:2014-08-12 17:21:54    阅读次数:250
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