2019-2020 ICPC, Asia Jakarta Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) easy: ACEGHK medium-easy: BJL medium: D ?????: I A. B. C. 对 \(R[],C[]\) 分别按奇偶性分段. 网! D. 考虑 check 一个串,枚举右走对应的前缀 pre,下走对应的后缀 suf. 把每行反串拼接中间连特殊字符,建 SA,能 match 上 p…

A. Find a Number 找到一个树,可以被d整除,且数字和为s 记忆化搜索 static class S{ int mod,s; String str; public S(int mod, int s, String str) { this.mod = mod; this.s = s; this.str = str; } } public static void main(String[] args) { IO io = new IO(); int[][]vis=new int[550…

A. Find a Number Solved By 2017212212083 题意:$找一个最小的n使得n % d == 0 并且 n 的每一位数字加起来之和为s$ 思路: 定义一个二元组$<d, s>$ 表示当前状态模d的值,以及每一位加起来的值 跑最短路,从$<0, 0>  跑到 <0, s>$ #include<bits/stdc++.h> using namespace std; ; const int INF = 0x3f3f3f3f; #de…

第一次打ACM比赛,和yyf两个人一起搞事情 感觉被两个学长队暴打的好惨啊 然后我一直做傻子题,yyf一直在切神仙题 然后放一波题解(部分) A. Find a Number LINK 题目大意 给你d和s,求你一个最小的数满足是d的倍数且数字和是s 思路 从高位到低位考虑广搜,把当前的长度和模d的余数作为状态,然后添加一个数就在对应的位置上加 一个模数只记录长度最小的状态,然后可以反着贪心回去 yyf的神仙code: #include <iostream> #include <cstd…

秉承ACM团队合作的思想懒,这篇blog只有部分题解,剩余的请前往星感大神Star_Feel的blog食用(表示男神汉克斯更懒不屑于写我们分别代写了下...) C. Cloud Computing 扫描线搞一搞区间(主席树也OK啊,只是空间玄学,主席树理论空间nlogn实际上开小那么10倍8倍没什么锅啊zzzz),对于权值建立权值线段树,然后记录每个权值出现的次数以及区间权值和,然后在线段树上二分求答案即. #include<cstdio> #include<cstring> #i…

As you might already know, space has always been a problem in ICPC Jakarta. To cope with this, ICPC Jakarta is planning to build two new buildings. These buildings should have a shape of a rectangle of the same size. Now, their problem is to find lan…

目录 Contest Info Solutions A. Copying Homework C. Even Path E. Songwriter G. Performance Review H. Twin Buildings J. Tiling Terrace K. Addition Robot Contest Info Practice Link Solved A B C D E F G H I J K L 7/12 O - O - O - O O - O O - O 在比赛中通过 Ø 赛后通…

题目传送门 题号 A B C D E F G H I J K L 状态 Ο . . Ο . . Ø Ø Ø Ø . Ο Ο:当场 Ø:已补 .  :  待补 A. Edit Distance Thinking:kk pai爷 Code:kk 不能直接反转,比如"010101",直接反转后就变成"101010",右移一位,然后加个0就可以了. 所以要先统计01的数量,如果0大于1,就全变成1,1大于0,就全变成0(从数量上的改变就大于s/2了),相等的话,就看首位是0…

Pathfinding is a task of finding a route between two points. It often appears in many problems. For example, in a GPS navigation software where a driver can query for a suggested route, or in a robot motion planning where it should find a valid seque…

Danang and Darto are classmates. They are given homework to create a permutation of N integers from 1 to N. Danang has completed the homework and created a permutation A of N integers. Darto wants to copy Danang's homework, but Danang asks Darto to c…