原题传送门 题意:给定一个只含小写字母的字符串,假设aeiouyw为元音字母,现在要把一些字母变为大写,要求相同字母的大小写必须相同,统计变化后的字符串中有多少对相邻.同为辅音字母且大小写不一样的字符对,输出能这样的字符对数量最大的字符串.字符串长度≤106. 分析:初读题,106的确吓了我一跳:这道题不像是有线性解法的样子.但只要仔细读题,看到相同字母的大小写必须相同这个条件,就不难发现其实106只是表象,真正有用的是字母--只要枚举字母的大小写情况,字符串多长根本不用在意.当然也不是真的不在…

时间限制: 3 Sec 内存限制: 512 MB 题目描述 There are two kinds of sounds in spoken languages: vowels and consonants. Vowel is a sound, produced with an open vocal tract; and consonant is pronounced in such a way that the breath is at least partly obstructed. For…

题意1: 给你一个由小写字母构成的字符串s,你可以其中某些字符变成大写字母.如果s中有字母a,你如果想把a变成大写,那s字符串中的每一个a都要变成A 最后你需要要出来所有的字符对,s[i]和s[i-1]需要是辅音字母,且s[i]和s[i-1]中需要一个字母大写另一个小写.a.e.i.o.u.w.y这七个字母是元音 输出最大字符对数量 题解1: 首先预处理一下s字符串中字符相邻的数量,就是记录w[s[i-1]][s[i]]的数量 之后二进制枚举所有字母变成大写的情况. 然后枚举这个字母变成大写之后…

听说这里可以做一些idea比较好的题.. 那就做做吧 2017-2018 ACM-ICPC, NEERC, Northern Subregional Contest A. Auxiliary Project 有$7$就要$7$ 余$1$就少一个$7$多一个$4$,余$2$就多一个$1$ #include <cstdio> #include <cstring> #include <cstdlib> #include <algorithm> using name…

A. Auxiliary Project 完全背包. #include<stdio.h> #include<iostream> #include<string.h> #include<string> #include<ctype.h> #include<math.h> #include<set> #include<map> #include<vector> #include<queue>…

 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…