摘要：Air RaidTime Limit:1000MSMemory Limit:10000KTotal Submissions:6275Accepted:3756DescriptionConsider a town where all the streets are one-way and each street leads from one intersection to another. It is also known that starting from an intersection and walking through town's streets you can never 阅读全文

摘要：My T-shirt suits meOur friend Victor participates as an instructor in an environmental volunteer program. His boss asked Victor to distributeNT-shirts toMvolunteers, one T-shirt each volunteer, whereNis multiple of six, andNM. There are the same number of T-shirts of each one of the six available si 阅读全文