摘要: 题目链接 Problem Description Matt loves letter L.A point set P is (a, b)-L if and only if there exists x, y satisfying:P = {(x, y), (x + 1, y), . . . , (x 阅读全文
posted @ 2017-06-30 12:10 茶飘香~ 阅读(544) 评论(0) 推荐(0) 编辑