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...
分类：
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
将R作为科学计算器使用
1.例：
> 1:5 + 6:10
[1] 7 9 11 13 15
> c(1,3,5,7,9)+c(2,4,6,8,10)
[1] 3 7 11 15 19
> median(2:5)
[1] 3.5
> 1:10 / 3
[1] 0.3333333 0.6666667 1.000...
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其他好文 时间：
2014-07-30 17:32:54
阅读次数：
164
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
Rectangles
Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 14340 Accepted Submission(s): 4629
Problem Description
Given two rectangl...
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其他好文 时间：
2014-07-30 12:16:43
阅读次数：
191
