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codeforces Gym 100338C Important Roads
正反两次最短路用于判断边是不是最短路上的边,把最短路径上的边取出来。然后求割边。#includeusing namespace std;typedef long long ll;#define fi first#define se second#define bug(x) coutdfn[u]) {...
分类:其他好文   时间:2015-08-21 18:58:29    阅读次数:137
ZOJ 3347 Picture Handling
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3347 Picture Handling Time Limit: 1 Second      Memory Limit: 32768 KB Xiaoyao likes to play with pictures very much. When he ...
分类:其他好文   时间:2015-08-21 15:39:36    阅读次数:193
LightOJ Aladdin and the Flying Carpet 1341【算数基本定理+几何】
1341 - Aladdin and the Flying Carpet PDF (English) Statistics Forum Time Limit: 3 second(s) Memory Limit: 32 MB It's said that Aladdin had to solve seven my...
分类:其他好文   时间:2015-08-21 13:39:49    阅读次数:145
python 函数的默认参数
直接上代码: first?=?1 second?=?2 def?haha(first=first,second=second):#默认值是上面定义的两个变量 ????print?"first:?%d"%first ????print?"second:?%d"%second haha() first?+=?5 secon...
分类:编程语言   时间:2015-08-21 11:35:25    阅读次数:164
Factors and Multiples
Factors and MultiplesPDF (English)StatisticsForumTime Limit:2 second(s)Memory Limit:32 MBYou will be given two sets of integers. Let's call them setAa...
分类:其他好文   时间:2015-08-21 10:51:33    阅读次数:142
LightOJ Bi-shoe and Phi-shoe 1370【欧拉函数+素数打表】
1370 - Bi-shoe and Phi-shoe PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB Bamboo Pole-vault is a massively popular sport in Xzh...
分类:其他好文   时间:2015-08-21 09:33:40    阅读次数:311
Light oj 1251 - Forming the Council 【2-sat】【判断是否存在可行解 + 反向拓扑输出可行解】
1251 - Forming the Council PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB In a city there are n voters, and m people formed the Go...
分类:其他好文   时间:2015-08-21 09:31:54    阅读次数:312
Trailing Zeroes (III) -;lightoj 1138
Trailing Zeroes (III)PDF (English)StatisticsForumTime Limit:2 second(s)Memory Limit:32 MBYou task is to find minimal natural numberN, so thatN!contain...
分类:其他好文   时间:2015-08-21 09:25:23    阅读次数:193
Light oj 1149--Factors and Multiples【二分匹配 && 经典建图】
1149 - Factors and Multiples PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB You will be given two sets of integers. Let's call the...
分类:其他好文   时间:2015-08-21 00:13:50    阅读次数:181
Signals and Systems Second Edition-Alan V. Oppenheim,Alan S. Willsky,S. Hamid Nawab
1.1连续时间和离散时间信号连续时间信号$x(t)$.离散时间信号$x[n]$.在$t_{1} \leq t \leq t_{2}$内的总能量对于一个连续时间信号$x(t)$定义为$\int_{t_{1}}^{t_{2}}\left | x(t) \right |^{2}dt$.其中$\left |...
分类:其他好文   时间:2015-08-20 23:49:13    阅读次数:812
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