FZU 2105 Digits Count Time Limit:10000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u Practice Description Given N integers A={A[0],A[1],...,A[N-1]}. Here we have some operations: Operation 1: AND opn L R Here opn, L and R are intege…
矩阵乘法来进行所有路径的运算, 线段树来查询修改. 关键还是矩阵乘法的结合律. Harry And Math Teacher Time Limit: 5000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 326 Accepted Submission(s): 89 Problem Description As we all know, Harry Porter…