Zipper 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 arbitrarily, but each must stay in its original order…
Gold Coins Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 21767 Accepted: 13641 Description The king pays his loyal knight in gold coins. On the first day of his service, the knight receives one gold coin. On each of the next two days…
A. Karen and Morning time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output Karen is getting ready for a new school day! It is currently hh:mm, given in a 24-hour format. As you know, Karen loves…
#include <cstdio> #include <iostream> #include <cstring> #include<queue> #include<cmath> using namespace std; const int INF = 0x3fffffff; int g[1005][1005]; int pre[1005]; int m; int bfs(int s,int t) { queue<int>q; q.pu…
Square Problem Description Given a set of sticks of various lengths, is it possible to join them end-to-end to form a square? Input The first line of input contains N, the number of test cases. Each test case begins with an integer 4 <= M <= 20, the…
1.Shell$ExitCodeException 现象:运行hadoop job时出现如下异常: 14/07/09 14:42:50 INFO mapreduce.Job: Task Id : attempt_1404886826875_0007_m_000000_1, Status : FAILED Exception from container-launch: org.apache.hadoop.util.Shell$ExitCodeException: org.apache.hado…
Pie Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 109 Accepted Submission(s): 52 Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a…
DZY Loves Chessboard time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY loves chessboard, and he enjoys playing with it. He has a chessboard of n rows and m columns. Some cells of the ches…
Basic Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 905 Accepted: 228 Description The programming language Ada has integer constants that look like this: 123, 8#123#, 16#abc#. These constants represent the integers 123, 83 (123 base 8) a…
Drainage Ditches Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 62016 Accepted: 23808 Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by wate…
How many integers can you find Time Limit : 12000/5000ms (Java/Other) Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 95 Accepted Submission(s) : 30 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description Now…
Tempter of the Bone Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 102071 Accepted Submission(s): 27649 Problem Description The doggie found a bone in an ancient maze, which fascinated him…
Employment Planning Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5151 Accepted Submission(s): 2208 Problem Description A project manager wants to determine the number of the workers neede…
FatMouse and Cheese Problem Description FatMouse has stored some cheese in a city. The city can be considered as a square grid of dimension n: each grid location is labelled (p,q) where 0 <= p < n and 0 <= q < n. At each grid location Fatmouse…
本文由 伯乐在线 - 淘小米 翻译,Daetalus 校稿.未经许可,禁止转载!英文出处:freepythontips.wordpress.com.欢迎加入翻译小组. Hi 朋友们.由于我最近都比较忙,所以已经很长一段时间没有写博客了.在这篇文章中我将和大家分享一些真正有用的技巧和窍门,这些技巧和窍门你们之前可能并不知道.所以不浪费时间了,让我们直接来看看这些内容吧: 枚举 之前我们这样操作: 1 2 3 4 i = 0 for item in iterable: print i, it…
a problem where OO seems more natural to me, implementing a utility class not instantiable. how to prevent instantiation, thanks to http://stackoverflow.com/questions/10558393/prevent-instantiation-of-an-object-outside-its-factory-method/10558404#105…
