2018年5月17日
G - Bicolored Horses URAL - 1167 （区间DP）
摘要： Every day, farmer Ion (this is a Romanian name) takes out all his horses, so they may run and play. When they are done, farmer Ion has... 阅读全文
posted @ 2018-05-17 17:28 _年少有为 阅读(175) 评论(0) 推荐(0) 编辑