摘要：
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers.... 阅读全文
posted @ 2015-04-29 20:14
TonyLuis
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摘要：
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of ... 阅读全文
posted @ 2015-04-29 11:02
TonyLuis
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摘要：
Write a function to find the longest common prefix string amongst an array of strings.解题思路：老实遍历即可，注意边界条件：JAVA实现： static public String longestCommonPre... 阅读全文
posted @ 2015-04-29 10:44
TonyLuis
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Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.解题思路：类似上题，方法多多，本题直接给出上题中字典匹配的代码：JAVA实现：stati... 阅读全文
posted @ 2015-04-29 09:35
TonyLuis
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摘要：
Given an integer, convert it to a roman numeral.Input is guaranteed to be within the range from 1 to 3999.本题思路比较简单，难度主要集中在罗马数字本身，直接贴代码。思路一，从高位开始：JAVA：... 阅读全文
posted @ 2015-04-29 09:23
TonyLuis
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