2017年2月17日
【洛谷P3131】 【USACO16JAN】子共七
摘要： P3131 [USACO16JAN]子共七Subsequences Summing to Sevens 题目描述 Farmer John's cows are standing in a row, as they have a tendency to do from time to t... 阅读全文
posted @ 2017-02-17 22:55 嘒彼小星 阅读(281) 评论(0) 推荐(1) 编辑