Tr A Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1980 Accepted Submission(s): 1458 Problem Description A为一个方阵,则Tr A表示A的迹(就是
Tr A Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1872 Accepted Submission(s): 1382 Problem Description A为一个方阵,则Tr A表示A的迹(就是主对角