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2013年3月22日

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=3065AC自动机代码：#include<iostream>#include<cmath>#include<cstdio>#include<string>#include<cstring>#include<vector>#include<stack>#include<queue>#include<set>#include<map>#include<algorithm>#define 阅读全文

posted @ 2013-03-22 17:07 夜-> 阅读(162) 评论(0) 推荐(0)

hdu 2896 病毒侵袭

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=2896AC自动机ASCII可见字符是从 33~126代码：#include<iostream>#include<cmath>#include<cstdio>#include<string>#include<cstring>#include<vector>#include<stack>#include<queue>#include<set>#include<map>#include<al 阅读全文

posted @ 2013-03-22 16:55 夜-> 阅读(175) 评论(0) 推荐(0)

hdu 2222 Keywords Search

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=2222第一个AC自动机AC自动机就是在trie上进行kmp需要三个步骤1，建立trie2，求fail指针3，匹配代码：#include<iostream>#include<cmath>#include<cstdio>#include<string>#include<cstring>#include<vector>#include<stack>#include<queue>#include<set>#in 阅读全文

posted @ 2013-03-22 10:01 夜-> 阅读(183) 评论(0) 推荐(0)

2013年3月18日

E. Coin Troubles

摘要： http://codeforces.com/contest/284/problem/E思维很重要呀原来是一个背包呀代码：#include<iostream>#include<cmath>#include<cstdio>#include<string>#include<cstring>#include<vector>#include<stack>#include<queue>#include<map>#include<set>#include<algorithm> 阅读全文

posted @ 2013-03-18 19:23 夜-> 阅读(194) 评论(0) 推荐(0)

D. Cow Program

摘要： http://codeforces.com/contest/284/problem/Ddp+记忆化搜索代码：#include<iostream>#include<cmath>#include<cstdio>#include<string>#include<cstring>#include<vector>#include<stack>#include<queue>#include<map>#include<set>#include<algorithm>#define 阅读全文

posted @ 2013-03-18 16:39 夜-> 阅读(366) 评论(0) 推荐(0)

2013年3月17日

poj 2513 Colored Sticks

摘要： http://poj.org/problem?id=2513字典树+并查集+欧拉路代码：#include<iostream>#include<cmath>#include<cstdio>#include<string>#include<cstring>#include<vector>#include<stack>#include<queue>#include<map>#include<set>#include<algorithm>#define long long 阅读全文

posted @ 2013-03-17 21:17 夜-> 阅读(153) 评论(0) 推荐(0)

2013年3月14日

poj 3370 Halloween treats

摘要： http://poj.org/problem?id=3370鸽巢原理代码：#include<iostream>#include<cstdio>#include<cstring>#include<cmath>#include<algorithm>#include<vector>#include<set>#include<map>#include<string>#include<queue>#include<stack>#include <iomanip> 阅读全文

posted @ 2013-03-14 19:56 夜-> 阅读(144) 评论(0) 推荐(0)

D. Yet Another Number Game

摘要： http://codeforces.com/contest/282/problem/D理解上去并不难就是博弈论用 dp 实现但是用记忆化搜索时间复杂度太高需要用递推用奇异状态去更新非奇异状态没被更新到的就是奇异状态这样的话只有奇异状态才去更新奇异状态相比非奇异状态要少很多所以节约了大量时间代码：#include<iostream>#include<cstdio>#include<cstring>#include<cmath>#include<algorithm>#include<vector>#includ 阅读全文

posted @ 2013-03-14 12:29 夜-> 阅读(280) 评论(0) 推荐(0)

B. Painting Eggs

摘要： http://codeforces.com/contest/282/problem/B很水的题呀，结果比赛时没有想出来直接上代码：#include<iostream>#include<cstdio>#include<cstring>#include<cmath>#include<algorithm>#include<vector>#include<set>#include<map>#include<string>#include<queue>#include<stack 阅读全文

posted @ 2013-03-14 12:23 夜-> 阅读(212) 评论(0) 推荐(0)

2013年3月13日

1032. Find a Multiple poj 2356 Find a multiple

摘要： http://acm.timus.ru/problem.aspx?space=1&num=1032http://poj.org/problem?id=2356鸽巢原理代码:#include<iostream>#include<cstdio>#include<cstring>#include<cmath>#include<algorithm>#include<vector>#include<set>#include<map>#include<string>#include<q 阅读全文

posted @ 2013-03-13 21:58 夜-> 阅读(177) 评论(0) 推荐(0)

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