题目链接:http://exam.upc.edu.cn/problem.php?id=5252题目:题目描述Given a triangle ABC with incenter (center of its inscribed circle), I, and circumscribed circle O, let M, N and P be the second points of inte...
题目链接:http://codeforces.com/gym/101635/attachments题目:题目描述As Jacques-Édouard really likes birthday cakes, he celebrates his birthday every hour, instead of every year. His friends ordered him a round...
题目链接:http://exam.upc.edu.cn/problem.php?id=5579题目:题目描述Snuke is having another barbeque party.This time, he will make one serving of Skewer Meal.He has a stock of N Skewer Meal Packs. The i-th Skewe...
题目:题目描述辣鸡 ljh NOI 之后就退役了,然后就滚去学文化课了。 他发现 katarina 大佬真是太强了,于是就学习了一下 katarina 大佬的做题方法。 比如这是一本有 n 道题的练习册, katarina 大佬每天都会做 k 道题。 第一天做第 1~k 题,第二天做第 2~k + 1 题……第 n − k + 1 天做第 n − k + 1~n 道题。 但是辣鸡 ljh...