摘要：
Blue Jeans Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 20163 Accepted: 8948 Description The Genographic Project is a research partnersh 阅读全文
摘要：
A. Finite or not? time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given several q 阅读全文