问题描述：
Given n, how many structurally unique BST's (binary search trees) that store values 1...n?
For example,
Given n = 3, there are a total of 5 unique BST's.
1 3 3 2...
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其他好文 时间：
2014-10-24 16:33:10
阅读次数：
117
“Swift is a new programming language for iOS and OS X app development. Nonetheless, many parts of Swift will be familiar from your experience of devel...
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其他好文 时间：
2014-10-24 14:20:08
阅读次数：
164
Problem Description
After coding so many days,Mr Acmer wants to have a good rest.So travelling is the best choice!He has decided to visit n cities(he insists on seeing all the cities!And he does no...
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其他好文 时间：
2014-10-24 13:01:58
阅读次数：
279
Pasha has many hamsters and he makes them work out. Today,
n hamsters (n is even) came to work out. The hamsters lined up and each hamster either sat down or stood up.
For another exercise, Pasha n...
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其他好文 时间：
2014-10-24 11:06:01
阅读次数：
238
7001. Visible Lattice Points
Problem code: VLATTICE
Consider a N*N*N lattice. One corner is at (0,0,0) and the opposite one is at (N,N,N). How many lattice points are visible from co...
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其他好文 时间：
2014-10-24 11:05:49
阅读次数：
294
Problem Description
The three hands of the clock are rotating every second and meeting each other many times everyday. Finally, they get bored of this and each of them would like to stay away from th...
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其他好文 时间：
2014-10-24 09:17:51
阅读次数：
334
New Zealand currency consists of $100, $50, $20, $10, and $5 notes and $2, $1, 50c, 20c, 10c and 5c coins. Write a program that will determine, for any given amount, in how many ways that amount may b...
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其他好文 时间：
2014-10-23 22:49:46
阅读次数：
247
解决Hibernate MySql "Too Many Connection"错误解决方案...
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数据库 时间：
2014-10-23 14:31:16
阅读次数：
149
Namespaces are heavily used in C# programming in two ways.First, the .NET Framework uses namespaces to organize its many classes, as follows:System.Co...
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其他好文 时间：
2014-10-22 21:40:57
阅读次数：
197
1.错误提示： mysql的Data truncation: Data too long for column 'path' at row 1错误原因： 1.字段过长而导致出错的, 2. 可能是因为数据库里的表设置的字符集不相同。解决办法： varchar(10) ——>varchar...
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数据库 时间：
2014-10-22 21:37:43
阅读次数：
433
