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
【题目】
原文：
1.3 Design an algorithm and write code to remove the duplicate characters in a string without using any additional buffer. NOTE: One or two additional variables are fine. An
extra copy of...
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其他好文 时间：
2014-05-07 08:48:12
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372
题目链接：
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1836
Number Puzzle
Time Limit: 2 Seconds Memory Limit: 65536 KB
Given a list of integers (A1, A2, ..., An), and a posi...
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其他好文 时间：
2014-05-07 07:42:49
阅读次数：
332
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
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
代码中的两个按钮处理事件，分别进行了文本的读写操作。
1）文件写操作
首先调用Activity的openFileOutPut()方法获得文本文件的输出流，第一个参数为文本文件的名字，第二个为文件的打开方式
接着调用Outputstream对象的write（）方法将Textview中获得文本信息写入outputstream对象，最后调用close（）方法完成写入操作。
2）文件读操作
首先调用Activity的openFileInPut()方法获得文本文件的输入流，
接着...
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移动开发 时间：
2014-05-07 03:15:13
阅读次数：
464
