Tr A Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4166 Accepted Submission(s): 3109 Problem Description A为一个方阵,则Tr A表示A的迹(就是主对角线上各项的和),现要求Tr(A^k)%9973. Input 数据的第一行是一个T,表示有T组数据.每组数据的第一行有…
A Short problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1716 Accepted Submission(s): 631 Problem Description According to a research, VIM users tend to have shorter fingers, compared…
How many ways?? Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1562 Accepted Submission(s): 546 Problem Description 春 天到了, HDU校园里开满了花, 姹紫嫣红, 非常美丽. 葱头是个爱花的人, 看着校花校草竞相开放, 漫步校园, 心情也变得舒畅. 为了多看看这…