摘要:
Problem Description These few days, Baby Ming is addicted to playing a matrix game. Given a n∗m matrix, the character in the matrix(i∗2,j∗2) (i,j=0,1, 阅读全文
摘要:
Problem Description Baby Ming collected lots of cell phone numbers, and he wants to sell them for money. He thinks normal number can be sold for b yua 阅读全文