test

摘要： Problem Statement "Teishi-zushi", a Japanese restaurant, is a plain restaurant with only one round counter. The outer circumference of the counter is  阅读全文

摘要： High school student Vasya got a string of length n as a birthday present. This string consists of letters 'a' and 'b' only. Vasya denotes beauty of th 阅读全文

摘要： Due to the increase in the number of students of Berland State University it was decided to equip a new computer room. You were given the task of buyi 阅读全文

摘要： B. Not simply beatiful strings time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Let's call 阅读全文

摘要： Mr. Takahashi has a string s consisting of lowercase English letters. He repeats the following operation on s exactly K times. Choose an arbitrary let 阅读全文

摘要： Jeff has become friends with Furik. Now these two are going to play one quite amusing game. 题目链接：http://codeforces.com/problemset/problem/351/B 题目大意： 阅读全文

摘要： 使学号和成绩关联，然后成绩sort，学号也跟着改变。 代码： #include<cstdio> #include<cmath> #include<algorithm> #include<cstring> using namespace std; const int MaxN = 1e5; struc 阅读全文

摘要： 题目开头：Youare given sequence a1, a2, ..., an of integer numbers of length n. Your task is to find such subsequence that itssum is odd and maximum among 阅读全文

摘要： 题目链接：https://abc092.contest.atcoder.jp/tasks/arc093_aThere are N sightseeing spots on the x-axis, numbered... 阅读全文