摘要：
题目:http://codeforces.com/problemset/problem/597/A Divisibility time limit per test 1 second memory limit per test 256 megabytes input standard input o 阅读全文
摘要：
题目:http://codeforces.com/problemset/problem/198/B Jumping on Walls time limit per test 2 seconds memory limit per test 256 megabytes input standard in 阅读全文