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摘要: 题目链接: 题目大意: N*N的棋盘,有一格残缺(R,C),问用L形状的3连格如何填满除了残缺格的棋盘。 题目思路: 【分治】 把问题一般化,左上角为(x,y),棋盘大小为s*s,残缺格位置为(r,c)的填充。 现在考虑,每一步把大的棋盘等分成4块 A B C D 不妨假设残缺格(r,c)在A中,那 阅读全文
posted @ 2017-03-14 15:30 Cool639zhu 阅读(825) 评论(0) 推荐(0)
摘要: 背景 小K攒足了路费来到了教主所在的宫殿门前,但是当小K要进去的时候,却发现了要与教主守护者进行一个特殊的游戏,只有取到了最大值才能进去Orz教主…… 描述 守护者拿出被划分为n个格子的一个圆环,每个格子上都有一个正整数,并且定义两个格子的距离为两个格子之间的格子数的最小值。环的圆心处固定了一个指针 阅读全文
posted @ 2017-03-11 18:12 Cool639zhu 阅读(392) 评论(0) 推荐(0)
摘要: 题目链接: https://cn.vjudge.net/problem/UVA-213 https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=149 题目大意: 阅读全文
posted @ 2017-02-21 14:27 Cool639zhu 阅读(536) 评论(0) 推荐(0)
摘要: Detachment Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 570 Accepted Submission(s): 192 Proble 阅读全文
posted @ 2017-01-11 11:02 Cool639zhu 阅读(380) 评论(0) 推荐(0)
摘要: Convex Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 294 Accepted Submission(s): 220 Problem De 阅读全文
posted @ 2017-01-11 09:08 Cool639zhu 阅读(400) 评论(0) 推荐(0)
摘要: 朋友 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description B君在围观一群男生和一群女生玩游戏,具体来说游戏是这样的:给出一棵n个节点的树,这棵树的每条 阅读全文
posted @ 2016-11-18 20:59 Cool639zhu 阅读(394) 评论(0) 推荐(0)
摘要: 最大的位或 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description B君和G君聊天的时候想到了如下的问题。给定自然数l和r ,选取2个整数x,y满足l < 阅读全文
posted @ 2016-11-18 20:01 Cool639zhu 阅读(752) 评论(0) 推荐(0)
摘要: 异或密码 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description 晨晨在纸上写了一个长度为N的非负整数序列{ai}。对于这个序列的一个连续子序列{al,a 阅读全文
posted @ 2016-11-18 19:51 Cool639zhu 阅读(415) 评论(0) 推荐(0)
摘要: 传递 Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description 我们称一个有向图G是传递的,当且仅当对任意三个不同的顶点a,,若G中有 一条边从a到b且有 阅读全文
posted @ 2016-11-18 19:39 Cool639zhu 阅读(567) 评论(0) 推荐(0)
摘要: 扫雷 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 998 Accepted Submission(s): 289 Problem Descri 阅读全文
posted @ 2016-11-18 19:28 Cool639zhu 阅读(603) 评论(0) 推荐(0)
摘要: Recursive sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 249 Accepted Submission(s): 14 阅读全文
posted @ 2016-11-01 22:44 Cool639zhu 阅读(846) 评论(0) 推荐(0)
摘要: Counting Cliques Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 539 Accepted Submission(s): 204 阅读全文
posted @ 2016-10-31 17:00 Cool639zhu 阅读(420) 评论(0) 推荐(0)
摘要: Thickest Burger Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 63 Accepted Submission(s): 60 Pro 阅读全文
posted @ 2016-10-31 15:06 Cool639zhu 阅读(400) 评论(0) 推荐(0)
摘要: Relative atomic mass Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 66 Accepted Submission(s): 阅读全文
posted @ 2016-10-31 15:03 Cool639zhu 阅读(615) 评论(0) 推荐(0)
摘要: Equation Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 92 Accepted Submission(s): 24 Problem D 阅读全文
posted @ 2016-10-31 14:47 Cool639zhu 阅读(318) 评论(0) 推荐(0)
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