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文章 2017-12-12 来自：开发者社区

[LeetCode] Ternary Expression Parser 三元表达式解析器

Given a string representing arbitrarily nested ternary expressions, calculate the result of the expression. You can always assume that the given expression is valid and only consists of digits 0-...

文章 2017-12-05 来自：开发者社区

[LeetCode] Parse Lisp Expression 解析Lisp表达式

You are given a string expression representing a Lisp-like expression to return the integer value of. The syntax for these expressions is given as follows.  An expression is either an i...

文章 2017-12-02 来自：开发者社区

[LeetCode] Regular Expression Matching 正则表达式匹配

Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or more of the preceding element. The matching should cover the en...

文章 2017-12-01 来自：开发者社区

[LeetCode] Expression Add Operators 表达式增加操作符

Given a string that contains only digits 0-9 and a target value, return all possibilities to add operators +, -, or * between the digits so they evaluate to the target va...

文章 2015-07-05 来自：开发者社区

[LeetCode] Regular Expression Matching

This problem has a typical solution using Dynamic Programming. We define the state P[i][j] to be true if s[0..i) matches p[0..j) and false otherwise. Then the state equations are: P[i][j] = P[i - 1...

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