B. Strongly Connected City time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output 题目链接： http://codeforces.com/contest/475/probl

A. Bayan Bus time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output 题目链接： http://codeforces.com/contest/475/problem/A The fi

D. CGCDSSQ time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Given a sequence of integers a1, ..., an andq queries

比赛链接：http://codeforces.com/contest/579 A. Raising Bacteria time limit per test：1 second memory limit per test：256 megabytes You are a lover of bacteria. You want to raise some