难点1,是栈,2是流程class Solution {public: int longestValidParentheses(string s) { stack mstack; char cbefore; int count = 0; if(s.empt...
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其他好文 时间:
2015-01-11 12:14:33
阅读次数:
119
Wildcard MatchingImplement wildcard pattern matching with support for'?'and'*'.'?' Matches any single character.'*' Matches any sequence of characters...
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其他好文 时间:
2015-01-10 22:20:52
阅读次数:
222
The problem:Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",r...
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其他好文 时间:
2015-01-10 01:03:04
阅读次数:
318
1812. Longest Common Substring IIProblem code: LCS2A string is finite sequence of characters over a non-empty finite set Σ.In this problem, Σ is the s...
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其他好文 时间:
2015-01-09 22:06:32
阅读次数:
339
非常经典的问题,使用栈来解决,我这里自己实现了一个栈,当然也能够直接用java自带的Stack类。自己实现的栈代码:import java.util.LinkedList;class StackOne { LinkedList data; int top; int maxSize; StackOne...
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其他好文 时间:
2015-01-09 12:00:02
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155
名称:sort
位置:/usr/bin/sort
权限:所有用户
用法: sort [OPTION]... [FILE]...
sort [OPTION]... --files0-from=F
选项:
-b --ignore-leading-blanks 忽略最前面的空格
-f --ignore-case fold lower case to upper case characters 忽略字母的大小写
...
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系统相关 时间:
2015-01-09 09:20:23
阅读次数:
269
Given a string containing just the characters '(', ')', '{', '}', '[' and ']',
determine if the input string is valid.
The brackets must close in the correct order, "()" and "()[]{}" are
all va...
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其他好文 时间:
2015-01-09 09:16:29
阅读次数:
149
fromdjango.shortcutsimportrender_to_response
fromdjangoimportforms
fromdjango.httpimportHttpResponse
classUserForm(forms.Form):
name=forms.CharField()
defregister(req):
ifreq.method==‘POST‘:
form_object=UserForm(req.POST)
ifform_object.is_valid():
printfo..
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其他好文 时间:
2015-01-09 01:52:51
阅读次数:
156
The problem: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 con...
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其他好文 时间:
2015-01-09 00:07:50
阅读次数:
208
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 ...
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其他好文 时间:
2015-01-09 00:03:00
阅读次数:
259