2020年11月25日
Door Frames CodeForces - 910B
摘要： 题目 Petya has equal wooden bars of length n. He wants to make a frame for two equal doors. Each frame has two vertical (left and right) sides of length 阅读全文
posted @ 2020-11-25 15:18 _comet 阅读(134) 评论(0) 推荐(0) 编辑