随笔分类 -  8-1-乱搞-思维

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ZOJ - 4104 Sequence in the Pocket（思维+元素移至列首排序）
摘要：DreamGrid has just found an integer sequence in his right pocket. As DreamGrid is bored, he decides to play with the sequence. He can perform the foll 阅读全文
posted @ 2019-05-18 21:57 yzm10 阅读(645) 评论(0) 推荐(0)
CodeForces - 710C Magic Odd Square（奇数和幻方构造）
摘要：Magic Odd Square Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are odd. Input The o 阅读全文
posted @ 2019-03-16 23:32 yzm10 阅读(357) 评论(0) 推荐(0)
CodeChef - ELHIDARR Find an element in hidden array（二分交互）
摘要：Find an element in hidden array There is an array of length N consisting of non-negative integers. The array is sorted in non-decreasing order. Each n 阅读全文
posted @ 2018-10-07 22:32 yzm10 阅读(308) 评论(0) 推荐(0)
HDU - 4821 String（窗口移动+map去重+hash优化）
摘要：String Given a string S and two integers L and M, we consider a substring of S as “recoverable” if and only if (i) It is of length M*L; (ii) It can be 阅读全文
posted @ 2018-10-06 21:06 yzm10 阅读(364) 评论(0) 推荐(0)
Gym - 100851A Adjustment Office（O（1）求行列和）
摘要：Adjustment Office Gym - 100851A 2 3 4 3 4 5 4 5 6 n<=10^6，q<=10^5 每个坐标点的值为x+y。 q次查询，每次求某行或某列的和，然后清空。 in out 3 7 12R 2 10C 3 0R 2 5R 1 5C 2 4C 1 0R 3 阅读全文
posted @ 2018-09-27 22:49 yzm10 阅读(269) 评论(0) 推荐(0)
Gym - 101611D Decoding of Varints（边界值处理）
摘要：Decoding of Varints Statements Varint is a type used to serializing integers using one or more bytes. The key idea is to have smaller values being enc 阅读全文
posted @ 2018-09-27 22:30 yzm10 阅读(321) 评论(0) 推荐(0)
ACM-ICPC2018北京网络赛 80 Days（双端队列+尺取）
摘要：题目4 : 80 Days 题目4 : 80 Days 时间限制:1000ms 单点时限:1000ms 内存限制:256MB 描述 80 Days is an interesting game based on Jules Verne's science fiction "Around the Wo 阅读全文
posted @ 2018-09-22 19:12 yzm10 阅读(623) 评论(0) 推荐(0)
UVA - 13022 Sheldon Numbers（位运算）
摘要：UVA - 13022 Sheldon Numbers 二进制形式满足ABA，ABAB数的个数（A为一定长度的1，B为一定长度的0）。 其实就是寻找在二进制中满足所有的1串具有相同的长度，所有的0串也具有相同的长度，并且在给定范围内的个数。 位运算。通过分析不难发现，所有解不会很大，因此我们可以暴力 阅读全文
posted @ 2018-09-14 16:01 yzm10 阅读(175) 评论(0) 推荐(0)
ACM-ICPC2018徐州网络赛 Features Track（二维map+01滚动）
摘要：Features Track 31.32% 1000ms 262144K Morgana is learning computer vision, and he likes cats, too. One day he wants to find the cat movement from a cat 阅读全文
posted @ 2018-09-09 17:13 yzm10 阅读(488) 评论(0) 推荐(0)
HDU - 5875 Function（预处理）
摘要：Function The shorter, the simpler. With this problem, you should be convinced of this truth. You are given an array AA of NN postive integers, and MM  阅读全文
posted @ 2018-08-31 17:25 yzm10 阅读(155) 评论(0) 推荐(0)
HDU - 6025 Coprime Sequence（gcd+前缀后缀）
摘要：Do you know what is called ``Coprime Sequence''? That is a sequence consists of nnpositive integers, and the GCD (Greatest Common Divisor) of them is 阅读全文
posted @ 2018-08-24 20:52 yzm10 阅读(114) 评论(0) 推荐(0)
HDU - 6400 多校8 Parentheses Matrix（构造）
摘要：Parentheses Matrix Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 0 Accepted Submission(s): 0S 阅读全文
posted @ 2018-08-15 17:58 yzm10 阅读(154) 评论(0) 推荐(0)
HDU-6395 多校7 Sequence（除法分块+矩阵快速幂）
摘要：Sequence Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1731 Accepted Submission(s): 656 Probl 阅读全文
posted @ 2018-08-14 23:09 yzm10 阅读(305) 评论(0) 推荐(0)
牛客多校3 C-Shuffle Cards（rope大法解决数组分块）
摘要：Shuffle Cards 链接：https://www.nowcoder.com/acm/contest/141/C来源：牛客网 时间限制：C/C++ 1秒，其他语言2秒 空间限制：C/C++ 262144K，其他语言524288K Special Judge, 64bit IO Format: 阅读全文
posted @ 2018-07-26 21:26 yzm10 阅读(346) 评论(0) 推荐(0)
HDU - 6185 Covering（暴搜+递推+矩阵快速幂）
摘要：Covering Covering Bob's school has a big playground, boys and girls always play games here after school. To protect boys and girls from getting hurt w 阅读全文
posted @ 2018-07-15 16:22 yzm10 阅读(447) 评论(0) 推荐(1)
CodeForces - 633D Fibonacci-ish 大数标记map+pair的使用
摘要：Fibonacci-ish Yash has recently learnt about the Fibonacci sequence and is very excited about it. He calls a sequence Fibonacci-ish if You are given s 阅读全文
posted @ 2018-04-05 22:23 yzm10 阅读(267) 评论(0) 推荐(0)
QDUOJ 河老师的新年礼物（尺取法）
摘要：河老师的新年礼物 发布时间: 2017年1月1日 15:11 最后更新: 2017年1月1日 15:13 时间限制: 1000ms 内存限制: 256M 描述 河老师的新年礼物是一个长度为n的ab串，他想要找出最长的一个子串使得这个子串中每个字符都相等，他称之为“最优子串”。当然对河老师来说这个问题 阅读全文
posted @ 2017-08-18 23:58 yzm10 阅读(336) 评论(0) 推荐(0)
HDU 1556 Color the ball 前缀和+思维
摘要：Color the ball N个气球排成一排，从左到右依次编号为1,2,3....N.每次给定2个整数a b(a <= b),lele便为骑上他的“小飞鸽"牌电动车从气球a开始到气球b依次给每个气球涂一次颜色。但是N次以后lele已经忘记了第I个气球已经涂过几次颜色了，你能帮他算出每个气球被涂过几 阅读全文
posted @ 2017-08-08 20:36 yzm10 阅读(205) 评论(0) 推荐(1)
CodeForces 628B New Skateboard 思维
摘要：B. New Skateboard time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Max wants to buy a new 阅读全文
posted @ 2017-07-30 17:12 yzm10 阅读(366) 评论(0) 推荐(0)
CodeForces - 377A Maze BFS逆思维
摘要：Maze Pavel loves grid mazes. A grid maze is an n × m rectangle maze where each cell is either empty, or is a wall. You can go from one cell to another 阅读全文
posted @ 2017-07-24 20:44 yzm10 阅读(402) 评论(1) 推荐(0)

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