摘要：http://poj.org/problem?id=1273 Drainage Ditches Time Limit: 1000MS Memory Limit: 10000K Total Submissions:87219 Accepted: 33916 Description Every time 阅读全文

摘要：Makoto and a Blackboard time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Makoto and a Bla 阅读全文