摘要：C - A Plug for UNIX You are in charge of setting up the press room for the inaugural meeting of the United Nations Internet eXecutive (UNIX), which ha 阅读全文

摘要：Going Home Problem Description On a grid map there are n little men and n houses. In each unit time, every little man can move one unit step, either h 阅读全文

摘要：Drainage Ditches Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 76000 Accepted: 29530 Description Every time it rains on Farmer John's fie 阅读全文