B - Encoded Love-letter Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64uSubmit Status Practice HDU 1591DescriptionAfter Gardon had...
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其他好文 时间：
2014-08-03 12:41:25
阅读次数：
194
题目：Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, given n = 3, a solution set is....
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编程语言 时间：
2014-08-02 12:19:33
阅读次数：
255
http://community.topcoder.com/stat?c=problem_statement&pm=13245就是有字符串，里面的字符可以随意两两消除，如果不等的话，那么最后如果留下一个字符，这个字符就是winning letter。如果任意方法消除都是这个winning lette...
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移动开发 时间：
2014-08-02 09:50:23
阅读次数：
248
题目：Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given "25525511135",return [....
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编程语言 时间：
2014-08-02 09:49:53
阅读次数：
287
题目：Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.Each ....
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编程语言 时间：
2014-08-02 01:48:12
阅读次数：
246
题目：Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T. The same re....
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编程语言 时间：
2014-08-01 10:43:21
阅读次数：
266
Given a 2D board and a word, find if the word exists in the grid.
The word can be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or vertically neighboring. The same letter cell may not be used more th...
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其他好文 时间：
2014-07-31 17:16:57
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221
题目：Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the tele....
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编程语言 时间：
2014-07-31 05:22:05
阅读次数：
307
问题描述：
Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.
For example,
If n = 4 and k = 2, a solution is:
[ [2,4], [3,4], [2,3], [1,2], [1,3], [1,4],]
解题思路...
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其他好文 时间：
2014-07-31 00:04:35
阅读次数：
204
题目：Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.For example,If n = 4 and k = 2, a solution is:[ [2,4], ...
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编程语言 时间：
2014-07-30 09:58:03
阅读次数：
218
