John is going on a fishing trip. He has h hours available (1 <= h <= 16), and there are n lakes in the area (2 <= n <= 25) all reachable along a single, one-way road. John starts at lake 1, but he can finish at any lake he wants. He can only travel from on...
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其他好文 时间：
2014-05-07 08:48:52
阅读次数：
515
Soma is a fashionable girl. She absolutely loves shiny stones that she can put on as jewellery accessories. She has been collecting stones since her childhood - now she has become really good with ide...
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其他好文 时间：
2014-05-07 07:38:20
阅读次数：
415
Paint the Grid Reloaded
Time Limit: 2 Seconds
Memory Limit: 65536 KB
Leo has a grid with N rows and M columns. All cells are painted with either black or white initially.
Two cells A ...
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其他好文 时间：
2014-05-07 07:28:35
阅读次数：
480
The Little Elephant likes permutations. This time he has a permutation A[1], A[2], ..., A[N] of numbers 1, 2, ...,N.
He calls a permutation A good, if the number of its inversions is equal to the n...
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其他好文 时间：
2014-05-07 07:20:50
阅读次数：
356
Paint the Grid Again
Time Limit: 2 Seconds
Memory Limit: 65536 KB
Leo has a grid with N × N cells. He wants to paint each cell with a specific color (either black or white).
Leo has a...
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其他好文 时间：
2014-05-07 06:56:10
阅读次数：
470
Video Surveillance
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 3145
Accepted: 1391
Description
A friend of yours has taken the job of security officer at...
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其他好文 时间：
2014-05-07 06:49:43
阅读次数：
387
Description
Farmer John has purchased a lush new rectangular pasture composed of M by
N (1 ≤ M ≤ 12; 1 ≤ N ≤ 12) square parcels. He wants to grow some yummy corn for the cows on a number of square...
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其他好文 时间：
2014-05-07 05:46:43
阅读次数：
323
【题目】
Chapter 1 | Arrays and Strings
原文：
1.1 Implement an algorithm to determine if a string has all unique characters. What if you can not use additional data structures?
译文:
实现一个算法来判断一个字符串中的字符...
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其他好文 时间：
2014-05-07 04:27:41
阅读次数：
312
CareerCup
目录
Chapter 1 | Arrays and Strings
1.1 Implement an algorithm to determine if a string has all unique characters. What if you can not use additional data structures?
1.2 Write co...
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其他好文 时间：
2014-05-07 04:25:44
阅读次数：
320
Problem：In the 2020 grid below, four numbers
along a diagonal line have been marked in red.08 02 22 97 38 15 00 40 00 75 04
05 07 78 52 12 50 77 91 08...
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其他好文 时间：
2014-05-06 14:35:55
阅读次数：
460
