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[leedcode 224] Basic Calculator
Implement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), the plus+or minus...
分类:其他好文   时间:2015-08-08 14:54:35    阅读次数:114
(medium)LeetCode 224.Basic Calculator
Implement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), the plus+or minus...
分类:其他好文   时间:2015-08-07 19:12:20    阅读次数:206
22.Generate Parentheses (String; dfs)
Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, givenn= 3, a solution set is:"((()))...
分类:其他好文   时间:2015-08-05 19:54:01    阅读次数:103
Longest Valid Parentheses
Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", the longest...
分类:其他好文   时间:2015-08-05 12:27:30    阅读次数:108
1068Parencodings栈
Parencodings Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 23040   Accepted: 13501 Description Let S = s1 s2...s2n be a well-formed string of parentheses. S...
分类:其他好文   时间:2015-08-04 19:23:43    阅读次数:108
LeetCode#22 Generate Parentheses
Problem Definition:Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, given n = 3, a ...
分类:其他好文   时间:2015-08-01 21:48:07    阅读次数:80
LeetCode "Different Ways to Add Parentheses"
My initial thought was recursive (a op b) evaluation, which doesn't work quite well.The correct way is to split by op. And, we can cache calculaton re...
分类:其他好文   时间:2015-08-01 14:12:44    阅读次数:101
[leetcode 32]Longest Valid Parentheses
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", ...
分类:其他好文   时间:2015-08-01 10:07:41    阅读次数:107
leetcode Valid Parentheses
今天看书的时候发现一个类里的一个成员函数是这样的: operator int() const; 。。。以前从来没见过。 这玩意儿叫做转换函数,它是一种特殊的类成员函数。 它定义将类类型值转变为其他类型值的转换。 转换操作符在类定义体内声明, 在保留字operator之后跟着转换的目标类型:一. 转换函数采用如下通用形式: operator type();...
分类:其他好文   时间:2015-08-01 01:12:13    阅读次数:114
leetcode_241——Different Ways to Add Parentheses (递归,动态规划)
Different Ways to Add ParenthesesTotal Accepted:1708Total Submissions:6304My SubmissionsQuestionSolutionGiven a string of numbers and operators, retur...
分类:其他好文   时间:2015-07-31 10:17:15    阅读次数:193
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