摘要：
Babelfish Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 44537 Accepted: 18800 Description You have just moved from Waterloo to a big city 阅读全文
摘要：
B. Hamming Distance Sum time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output B. Hamming Dista 阅读全文