Hacking Numbers (Easy Version) bitmasks,constructive algorithms,interactive,math,number theory x7807 2109B Slice to Survive bitmasks,greedy,math x12542 2109A It's Time To Duel implementation x20735 2108F Fallen
Codeforces 1096D - Easy Problem - [DP] 题目链接:http://codeforces.com/problemset/problem/1096/D 题意: 给出一个小写字母组成的字符串,如果该字符串的某个子序列为hardhard,就代表这个字符串是不好的。 现在你要删掉若干字母,使得字符串是好的,同时删除第ii个字母会使得歧义程度增加a[i]a[i],你需要...
codeforces 1096D Easy Problem dp(字符串DP) codeforces 1096D Easy Problem dp 题目链接[https://codeforces.com/problemset/problem/1096/D] 题意:给你一个字符串,每个字符都有对应的价值,然后给你一个目标串hard,要求这个字符串中没有包含hard的子序列(即,可不连序,如haarrdd也不允许),问删除若干个字符...
cryfor being an amazing coordinator and being even more amazing to add a problem to the set, andIntellegentfor adding a wowee problem to the set. Dominater069for red testing. Proof_by_QED,__baozii__,AksLolCoding,amoeba4,catgirl,efishel,-firefly-,Edeeva,18o3for orange testing. ...
codeforces B. Ping-Pong (Easy Version) 解题报告 题目链接:http://codeforces.com/problemset/problem/320/B 题目意思:有两种操作:"1 x y"(x < y)和 "2 a b"(a ≠ b)。 问对于的"2 a b" 询问,能否从第a行的区间到达第b行的区间(行的数量是以:"1 x y" 来统计的,不包括"2 a ...
Thus, you can hack somebody else's solution and earn points through it. After the contest all the solutions that have passed the pretests and haven't been hacked are tested on the final set of tests. The value of a task decreases during the contest (the faster you solve the problem, ...
( i 值与easy 中的mid 意义相同,代表要处理的 LCP 值)的所有起点插入到 set 当中,当然 z值=i 的起点要用 mp 记录,这里放进去的是 z值=i 的点而不是 z值\geq i 的点,原因在下一段落解释;之后同 easy 版本一样二分查找分段起点的位置,每找到一个就说明能多分一段,二分完就能求出对应的 LCP[i]...
Vasya is preparing a contest, and now he has written a statement for an easy problem. The statement is a string of length nn consisting of lowercase Latin latters. Vasya thinks that the statement can be considered hard if it contains a subsequence hard; otherwise the statement is easy. For...
Problem A: An easy problem Description Peter Manson owned a small house in an obscure street. It was a weather-beaten tenement of wood, containing some six or eight rooms, all of which, with one exception, were given over to dirt, cobwebs, gloom, and d Angel_Kitty 2018/04/08 9870 Co...
http://codeforces.com/problemset/problem/723/C Examples input 代码语言:javascript 代码运行次数:0 运行 AI代码解释 4 2 1 2 3 2 output 代码语言:javascript 代码运行次数:0 运行 AI代码解释 2 1 1 2 1 2 input 代码语言:javascript 代码运行次数:0 运行 AI代码解释 7 3 1 3 2 2 2 2 1 outpu...