02 2015 档案

4Sum
摘要：题目描述：Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the su... 阅读全文
posted @ 2015-02-11 10:15 Sawyer Ford 阅读(132) 评论(0) 推荐(0)
3Sum Closest
摘要：题目描述：Given an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target.Return the sum of the three integers.Yo... 阅读全文
posted @ 2015-02-10 18:46 Sawyer Ford 阅读(156) 评论(0) 推荐(0)
3Sum
摘要：题目描述：Given an arraySofnintegers, are there elementsa,b,cinSsuch thata+b+c= 0? Find all unique triplets in the array which gives the sum of zero.Note:E... 阅读全文
posted @ 2015-02-09 14:53 Sawyer Ford 阅读(198) 评论(0) 推荐(0)
Longest Common Prefix
摘要：题目描述：Write a function to find the longest common prefix string amongst an array of strings. 题目很唬人，搞清楚前缀的意思就简单了。解题思路就四个字：垂直匹配。solution：string longestC... 阅读全文
posted @ 2015-02-08 11:23 Sawyer Ford 阅读(147) 评论(0) 推荐(0)
Roman to Integer
摘要：题目描述：Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999. 这道题很简单，我就直接贴答案了。solution1：int romanTo... 阅读全文
posted @ 2015-02-06 21:37 Sawyer Ford 阅读(176) 评论(0) 推荐(0)
Integer to Roman
摘要：题目描述：Given an integer, convert it to a roman numeral.Input is guaranteed to be within the range from 1 to 3999. 这道题我必须炫一下，因为提交一次就成功了，而且代码很赞。solution：... 阅读全文
posted @ 2015-02-06 08:50 Sawyer Ford 阅读(158) 评论(0) 推荐(0)
Container With Most Water
摘要：题目描述：Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two ... 阅读全文
posted @ 2015-02-05 10:37 Sawyer Ford 阅读(150) 评论(0) 推荐(0)
Regular Expression Matching
摘要：题目描述：Implement regular expression matching with support for'.'and'*'.'.' Matches any single character.'*' Matches zero or more of the preceding elemen... 阅读全文
posted @ 2015-02-02 10:36 Sawyer Ford 阅读(153) 评论(0) 推荐(0)