摘要：
Partition Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description Define f(n) as the number of ways to pe 阅读全文
摘要：
B. Mike and Shortcuts time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output B. Mike and Shortc 阅读全文