摘要:
" 题目链接 " Description Given a n × n matrix A and a positive integer k, find the sum S = A + A^2 + A^3 + … + A^k. Input The input contains exactly one t 阅读全文
摘要:
" 题目链接 " Description Panda has received an assignment of painting a line of blocks. Since Panda is such an intelligent boy, he starts to think of a ma 阅读全文