随笔分类 -  搜索 DFS

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Codeforces Round #396 (Div. 2) E. Mahmoud and a xor trip dfs 按位考虑
摘要：E. Mahmoud and a xor trip 题目连接： http://codeforces.com/contest/766/problem/E Description Mahmoud and Ehab live in a country with n cities numbered from 阅读全文
posted @ 2017-02-08 15:27 qscqesze 阅读(786) 评论(0) 推荐(2) 编辑
URAL 1970 J - 皇后像廣場 dfs
摘要：J 皇后像廣場 题目连接： http://acm.hust.edu.cn/vjudge/contest/123332 problem/J Description Vova was walking along the Statue Square (皇后像廣場) in Hong Kong, when h 阅读全文
posted @ 2016-07-23 09:34 qscqesze 阅读(348) 评论(0) 推荐(0) 编辑
Gym 100646 You’ll be Working on the Railroad dfs
摘要：You’ll be Working on the Railroad 题目连接： http://codeforces.com/gym/100646/attachments Description Congratulations! Your county has just won a state gra 阅读全文
posted @ 2016-07-21 18:47 qscqesze 阅读(348) 评论(0) 推荐(0) 编辑
hdu 5727 Necklace dfs+二分图匹配
摘要：Necklace/center 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5727 Description SJX has 2 N magic gems. N of them have Yin energy inside while others 阅读全文
posted @ 2016-07-20 10:34 qscqesze 阅读(678) 评论(5) 推荐(0) 编辑
BZOJ 4602: [Sdoi2016]齿轮 dfs
摘要：4602: [Sdoi2016]齿轮 题目连接： http://www.lydsy.com/JudgeOnline/problem.php?id=4602 Description 现有一个传动系统，包含了N个组合齿轮和M个链条。每一个链条连接了两个组合齿轮u和v，并提供了一个传动比x : y。即如果 阅读全文
posted @ 2016-07-12 20:02 qscqesze 阅读(377) 评论(0) 推荐(0) 编辑
Codeforces Round #359 (Div. 1) B. Kay and Snowflake dfs
摘要：B. Kay and Snowflake 题目连接： http://www.codeforces.com/contest/685/problem/B Description After the piece of a devilish mirror hit the Kay's eye, he is n 阅读全文
posted @ 2016-06-25 10:50 qscqesze 阅读(466) 评论(0) 推荐(0) 编辑
Codeforces Round #102 (Div. 1) A. Help Farmer 暴力分解
摘要：A. Help Farmer 题目连接： http://www.codeforces.com/contest/142/problem/A Description Once upon a time in the Kingdom of Far Far Away lived Sam the Farmer. 阅读全文
posted @ 2016-06-12 18:41 qscqesze 阅读(462) 评论(0) 推荐(0) 编辑
Codeforces Round #356 (Div. 2) E. Bear and Square Grid 滑块
摘要：E. Bear and Square Grid 题目连接： http://www.codeforces.com/contest/680/problem/E Description You have a grid with n rows and n columns. Each cell is eith 阅读全文
posted @ 2016-06-10 10:27 qscqesze 阅读(813) 评论(0) 推荐(2) 编辑
Codeforces Round #356 (Div. 2) D. Bear and Tower of Cubes dfs
摘要：D. Bear and Tower of Cubes 题目连接： http://www.codeforces.com/contest/680/problem/D Description Limak is a little polar bear. He plays by building towers 阅读全文
posted @ 2016-06-09 11:31 qscqesze 阅读(909) 评论(0) 推荐(0) 编辑
UVA 2474 - Balloons in a Box 爆搜
摘要：2474 Balloons in a Box 题目连接： https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=99999999&page=show_problem&category=36&problem 阅读全文
posted @ 2016-06-07 17:16 qscqesze 阅读(462) 评论(0) 推荐(1) 编辑
Codeforces Round #222 (Div. 1) A. Maze dfs
摘要：A. Maze 题目连接： http://codeforces.com/contest/377/problem/A Description Pavel loves grid mazes. A grid maze is an n × m rectangle maze where each cell i 阅读全文
posted @ 2016-05-30 08:55 qscqesze 阅读(480) 评论(0) 推荐(0) 编辑
Codeforces Beta Round #37 C. Old Berland Language 暴力 dfs
摘要：C. Old Berland Language 题目连接： http://www.codeforces.com/contest/37/problem/C Description Berland scientists know that the Old Berland language had exa 阅读全文
posted @ 2016-05-19 23:10 qscqesze 阅读(529) 评论(0) 推荐(0) 编辑
Codeforces Beta Round #9 (Div. 2 Only) C. Hexadecimal's Numbers dfs
摘要：C. Hexadecimal's Numbers 题目连接： http://www.codeforces.com/contest/9/problem/C Description One beautiful July morning a terrible thing happened in Mainf 阅读全文
posted @ 2016-04-20 20:14 qscqesze 阅读(694) 评论(0) 推荐(0) 编辑
Codeforces Beta Round #6 (Div. 2 Only) D. Lizards and Basements 2 dfs
摘要：D. Lizards and Basements 2 题目连接： http://codeforces.com/contest/6/problem/D Description This is simplified version of the problem used on the original 阅读全文
posted @ 2016-04-04 23:09 qscqesze 阅读(338) 评论(0) 推荐(0) 编辑
Codeforces Round #346 (Div. 2) E. New Reform dfs
摘要：E. New Reform 题目连接： http://www.codeforces.com/contest/659/problem/E Description Berland has n cities connected by m bidirectional roads. No road conne 阅读全文
posted @ 2016-03-31 18:08 qscqesze 阅读(555) 评论(0) 推荐(0) 编辑
VK Cup 2016 - Qualification Round 2 C. Road Improvement dfs
摘要：C. Road Improvement 题目连接： http://www.codeforces.com/contest/638/problem/C Description In Berland there are n cities and n 1 bidirectional roads. Each 阅读全文
posted @ 2016-03-25 19:02 qscqesze 阅读(366) 评论(0) 推荐(0) 编辑
HDU 5305 Friends dfs
摘要：Friends 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5305 Description There are n people and m pairs of friends. For every pair of friends, they ca 阅读全文
posted @ 2016-03-23 22:13 qscqesze 阅读(188) 评论(0) 推荐(0) 编辑
BZOJ 1053: [HAOI2007]反素数ant dfs
摘要：1053: [HAOI2007]反素数ant 题目连接： http://www.lydsy.com/JudgeOnline/problem.php?id=1053 Description 对于任何正整数x，其约数的个数记作g(x)。例如g(1)=1、g(6)=4。 如果某个正整数x满足：g(x) g 阅读全文
posted @ 2016-02-03 23:02 qscqesze 阅读(450) 评论(0) 推荐(0) 编辑
Codevs 3728 联合权值
摘要：<center 联合权值</center 题目连接：http://codevs.cn/problem/3728/ Description给一棵树，然后每相距离为2的点都会产生一个联合权值，等于Wa Wb问你联合权值最大的是多少，所有联合权值的和是多少 Input第一行nn 1行 x y 表示xy... 阅读全文
posted @ 2016-01-01 22:26 qscqesze 阅读(234) 评论(0) 推荐(0) 编辑
Codeforces Good bye 2015 B. New Year and Old Property dfs 数位DP
摘要：B. New Year and Old Property 题目连接： http://www.codeforces.com/contest/611/problem/B Description The year 2015 is almost over. Limak is a little polar b 阅读全文
posted @ 2015-12-31 11:26 qscqesze 阅读(573) 评论(0) 推荐(0) 编辑

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