2018年7月13日
CodeForces - 779D String Game（二分）
摘要： Little Nastya has a hobby, she likes to remove some letters from word, to obtain another word. But it turns out to be pretty hard for her, because she 阅读全文
posted @ 2018-07-13 11:44 Lightfall 阅读(164) 评论(0) 推荐(0) 编辑