青铜时代

问题描述

The ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the four-digit room numbers on their offices. — It is a matter of

4月16日，日本熊本地区强震后，受灾严重的阿苏市一养猪场倒塌，幸运的是，猪圈里很多头猪依然坚强存活。当地15名消防员耗时一天解救围困的“猪坚强”。不过与在废墟中靠吃木炭饮雨水存活36天的中国汶川“猪坚强”相比，熊本的猪可没那么幸运，因为它们最终还是没能逃过被送往屠宰场的命运。 我们假设“猪坚强”被困在一个N*M的废墟中，其中“@”表示“猪坚强”的位置，“.”表示可以直接通过的空地，“#”表示不

Recently, Mike was very busy with studying for exams and contests. Now he is going to chill a bit by doing some sight seeing in the city.City consists of n intersections numbered from 1 to n. Mike star