摘要：
Ambiguous permutationsTime Limit:1000MSMemory Limit:65536KTotal Submissions:5319Accepted:3145DescriptionSome programming contest problems are really tricky: not only do they require a different output format from what you might have expected, but also the sample output does not show the difference. 阅读全文
摘要：
106 miles to ChicagoTime Limit:2000MSMemory Limit:65536KTotal Submissions:2765Accepted:1328Special JudgeDescriptionIn the movie "Blues Brothers", the orphanage where Elwood and Jack were raised may be sold to the Board of Education if they do not pay 5000 dollars in taxes at the Cook Count 阅读全文