Given n items with size A[i], an integer m denotes the size of a backpack. How full you can fill this backpack?注意You can not divide any item into smal...
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其他好文 时间:
2015-01-14 08:29:24
阅读次数:
339
https://docs.python.org/2/howto/regex.htmlIdentifiers:\d any number\D anything but a number\s space\S anything but a space\w any character\W any...
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其他好文 时间:
2015-01-14 00:34:01
阅读次数:
268
A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any point ...
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其他好文 时间:
2015-01-13 22:55:24
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195
Implement regular expression matching with support for'.'and'*'.'.' Matches any single character.'*' Matches zero or more of the preceding element.The...
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其他好文 时间:
2015-01-13 19:32:58
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160
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).
The robot can only move either down or right at any point in time. The robot is trying to reach the ...
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其他好文 时间:
2015-01-12 16:41:29
阅读次数:
144
Implement wildcard pattern matching with support for '?' and '*'.
'?' Matches any single character.
'*' Matches any sequence of characters (including the empty sequence).
The matching should cover t...
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其他好文 时间:
2015-01-12 16:39:22
阅读次数:
168
swfit中的String和Int是 struct定义的,不同于NSString和NSNumber, 如果想在一个数组中同时包含String和Int,那么这个数组要声明为[Any] 而不是 [AnyObject] , 因为他们不是class!另外,与c中的string和int 不同,swfit中的是...
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编程语言 时间:
2015-01-12 12:51:15
阅读次数:
159
题目:A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.Return a deep co...
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编程语言 时间:
2015-01-11 17:39:30
阅读次数:
178
原文:https://help.github.com/articles/what-is-my-disk-quota/
What is my disk quota?磁盘配额限制是多少?
GitHub doesn't have any set disk quotas. We try to provide abundant storage for all Git repo...
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其他好文 时间:
2015-01-11 12:25:28
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3757
The problem:Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree,...
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其他好文 时间:
2015-01-11 00:59:13
阅读次数:
287