摘要：[ICPC2014 WF] Pachinko 题面翻译 题目描述 有一个宽度为 \(w\) 高度为 \(h\) 的方格纸， $ w \times h$ 的格子中，有一些是空的，有一些是洞，有一些是障碍物。从第一行的空的格子中随机选一个放置一个球，向上下左右移动的概率比为 \(p_u : p_d : 阅读全文

摘要：题目描述 The Arca Carania Mountain national park is opening up for tourist traffic. The national park has a number of sites worth seeing and roads that co 阅读全文

摘要：题目描述 A wireless sensor network consists of autonomous sensors scattered in an environment where they monitor conditions such as temperature, sound, an 阅读全文