摘要:
Matrix Time Limit: 2000MS Memory Limit: 30000K Total Submissions: 3845 Accepted: 1993 Description Given an n*n matrix A, whose entries Ai,j are intege 阅读全文
摘要:
Dessert Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 5430 Accepted: 2029 Description FJ has a new rule about the cows lining up for dinn 阅读全文