2016年2月6日

Longest Valid Parentheses

摘要： Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the lo 阅读全文

posted @ 2016-02-06 20:03 walkwalkwalk 阅读(191) 评论(0) 推荐(0) 编辑

Search in Rotated Sorted Array

摘要： Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target va 阅读全文

posted @ 2016-02-06 19:33 walkwalkwalk 阅读(176) 评论(0) 推荐(0) 编辑

Next Permutation

摘要： Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possib 阅读全文

posted @ 2016-02-06 18:06 walkwalkwalk 阅读(168) 评论(0) 推荐(0) 编辑

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