摘要：
题目链接： Bob and Alice are playing numbers DESCRIPTION Bob and his girl friend are playing game together.This game is like this: There are nn numbers. If 阅读全文
摘要：
题目链接： B. Dreamoon and Sets time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output time limit per 阅读全文
摘要：
题目链接： A. Dreamoon and Sums time limit per test 1.5 seconds memory limit per test 256 megabytes input standard input output standard output time limit 阅读全文