Problem DescriptionGiven three strings, you are to determine whether the third string can be formed by combining the characters in the first two strin...
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其他好文 时间：
2014-08-18 17:46:52
阅读次数：
244
Description
Again Prime? No time.
Input: standard input
Output: standard output
Time Limit: 1 second
The problem statement is very easy. Given a number
n you have to determine the largest p...
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其他好文 时间：
2014-08-18 14:34:52
阅读次数：
193
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
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其他好文 时间：
2014-08-18 13:02:02
阅读次数：
209
Description
Samball is going to travel in the coming vacation. Now it's time to make a plan. After choosing the destination city, the next step is to determine the travel route. As this poor guy has ...
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其他好文 时间：
2014-08-18 10:50:54
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334
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
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其他好文 时间：
2014-08-17 21:11:02
阅读次数：
213
Problem Description
Given three strings, you are to determine whether the third string can be formed by combining the characters in the first two strings. The first two strings can be mixed arbitra...
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其他好文 时间：
2014-08-17 13:04:42
阅读次数：
205
Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth...
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其他好文 时间：
2014-08-16 23:42:41
阅读次数：
165
Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.Fo...
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其他好文 时间：
2014-08-16 22:21:41
阅读次数：
235
Problem Description
A project manager wants to determine the number of the workers needed in every month. He does know the minimal number of the workers needed in each month. When he hires or fires...
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其他好文 时间：
2014-08-14 01:36:07
阅读次数：
332
不要因为走的太远而忘记我们为什么出发[问题描述]Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets mu...
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其他好文 时间：
2014-08-14 01:00:57
阅读次数：
160
