摘要：
InputThe first line contains the number of test cases T (T ≤ 100). Each test case begins with two positiveintegers n, t (1 ≤ n ≤ 50, 1 ≤ t ≤ 109), the 阅读全文
摘要：
InputThe input consists of a sequence of matrix specifications. Each matrix specification consists of the rowand column dimensions in that order on a 阅读全文