题目：Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurally identica....
分类：
编程语言 时间：
2014-07-31 02:24:15
阅读次数：
211
Description
The Fibonacci sequence is the sequence of numbers such that every element is equal to the sum of the two previous elements, except for the first two elements f0 and f1 which are respect...
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其他好文 时间：
2014-07-31 00:08:05
阅读次数：
281
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
A Famous Stone Collector
Problem Description
Mr. B loves to play with colorful stones. There are n colors of stones in his collection. Two stones with the same color are indistinguishable. M...
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其他好文 时间：
2014-07-30 17:41:44
阅读次数：
287
/*A + B Problem II
Problem Description
I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.
Input
The first line of the input contains an...
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其他好文 时间：
2014-07-30 17:38:54
阅读次数：
306
Problem Description
Recently, scientists find that there is love between any of two people. For example, between A and B, if A don’t love B, then B must love A, vice versa. And there is no possibilit...
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其他好文 时间：
2014-07-30 17:38:04
阅读次数：
287
Master-Mind Hints
MasterMind is a game for two players. One of them, Designer, selects a secret code. The other,Breaker, tries to break it. A code is no more than a row of colored dots. ...
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其他好文 时间：
2014-07-30 14:44:53
阅读次数：
242
Description
Recently, researchers on Mars have discovered N powerful atoms. All of them are different. These atoms have some properties. When two of these atoms collide, one of them disappears and ...
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其他好文 时间：
2014-07-30 12:24:13
阅读次数：
226
Description
In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping two adjacent sequence elements until the seq...
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其他好文 时间：
2014-07-30 12:22:33
阅读次数：
290
Pots
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 9734
Accepted: 4099
Special Judge
Description
You are given two pots, having the volume of A and B...
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其他好文 时间：
2014-07-30 12:17:03
阅读次数：
297
