我的作用:增加罚时. noip380分大佬全程带飞出了10T,可惜被我搞的罚时太高了... 那啥,你会发现java代码有两种风格,嗯两个人,c++自然就是自招大佬了... A:大水题略 B:(不是我写的...而且我还没看,,,对这种题一点兴趣没有 import java.util.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int T =…

http://codeforces.com/gym/100712/attachments 题意: 给出一串数字,每次选择连续的k个数字加上任意数(超过10就取余),最后要使得所有数字都相等,求最大的k. 思路: 开关翻转问题. 算法具体可以参考<挑战程序竞赛>常用技巧篇. 这道题目就是在枚举k的同时再枚举一下最后要转换成的数字即可. #include<iostream> #include<algorithm> #include<cstring> #inclu…

http://codeforces.com/gym/100712/attachments 题意: 给出一个01串,现在要切割这个01串,使得每个子串长度都不大于k,并且每个子串不能01交替出现,单个字符是合法的. 思路:很容易想到用dp去做,但是怎么做呢? 我们可以先预处理一下i~j是否是合法的子串,即是否是01交替出现的串. 接下来我们从尾部开始,d[i]表示i~n所需的最少切割数.那么每次在左边新加入一个数字时,怎么确定它的最少切割数呢? 设f[i][t]不是01交替的串并且长度是小于等于k…

http://codeforces.com/gym/100712/attachments 题意是给定一个无向图,要求添加一条边,使得最后剩下的桥的数量最小. 注意到在环中加边是无意义的. 那么先把环都缩成一个点,然后重新建立一颗树,找出树的直径就好. #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <algorithm> #incl…

 Gym 101047M Removing coins in Kem Kadrãn Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Practice Description standard input/output Andréh and his friend Andréas are board-game aficionados. They know many of their friend…

 Gym 101047K Training with Phuket's larvae Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Practice Description standard input/output Thai cuisine is known for combining seasonings so that every dish has flavors that are…

Gym 101047E Escape from Ayutthaya Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u  Practice  Description standard input/output Ayutthaya was one of the first kingdoms in Thailand, spanning since its foundation in 1350 to…

 Gym 101047B  Renzo and the palindromic decoration Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Practice Description standard input/output At the ruins of Wat Phra Si Sanphet (วดพระศรสรรเพชญ), one can find famous inscr…

题目链接 http://codeforces.com/gym/101102/problem/J Description standard input/output You are given an array A of integers of size N, and Q queries. For each query, you will be given a set of distinct integers S and two integers L and R that represent a…

题目链接 http://codeforces.com/gym/100917/problem/J Description standard input/outputStatements The jury of Berland regional olympiad in informatics does not trust to contest management systems, so the Berland regional programming contest is judged by th…