Description A bus moves along the coordinate line Ox from the point x = 0 to the point x = a. After starting from the point x = 0, it reaches the point x = a, immediately turns back and then moves to the point x = 0. After returning to the point x = …

C. Bus time limit per test: 2 seconds memory limit per test: 256 megabytes input: standard input output: standard output A bus moves along the coordinate line Ox from the point x = 0 to the point x = a. After starting from the point x = 0, it reaches…

地址:http://codeforces.com/contest/660/problem/B 题目: B. Seating On Bus time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Consider 2n rows of the seats in a bus. n rows of the seats on the left…

题目链接: http://codeforces.com/problemset/problem/711/A 题目大意: N个字符串,每个字符串5位,找到第一个出现两个OO的并改成++输出YES和改后字符串,没有输出NO. 题目思路: [模拟] 签到题.看阅读理解能力和手速. // //by coolxxx //#include<bits/stdc++.h> #include<iostream> #include<algorithm> #include<string&…

https://vjudge.net/problem/CodeForces-864C 题意:两地之间有个加油站,往返走k个单程,最少加油多少次. 大佬几十行代码就解决,我却要用一百多行的if语句模拟解决. #include<stdio.h> #include<iostream> #include<algorithm> #include<cstring> #include<math.h> #include<string> #includ…

题目链接: B. Seating On Bus time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Consider 2n rows of the seats in a bus. n rows of the seats on the left and n rows of the seats on the right. Each ro…

Fox and Cross Time Limit: 1000MS   Memory Limit: 262144KB   64bit IO Format: %I64d & %I64u Submit Status Description Fox Ciel has a board with n rows and n columns. So, the board consists of n × n cells. Each cell contains either a symbol '.', or a s…

Rebranding Problem Description The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding - an active marketing strategy, that includes a set of measures to change either the bra…

B. Cards time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output Catherine has a deck of n cards, each of which is either red, green, or blue. As long as there are at least two cards left, she can…

C. Report time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output Each month Blake gets the report containing main economic indicators of the company "Blake Technologies". There are n commodi…