2018年5月23日
A - Chess Placing CodeForces - 985A
摘要： You are given a chessboard of size 1 × n. It is guaranteed that n is even. The chessboard is painted like this: "BWBW...BW". Some cells of the board a 阅读全文
posted @ 2018-05-23 19:53 Lewin的成长之路 阅读(180) 评论(0) 推荐(0) 编辑