摘要：
Opposite to Grisha's nice behavior, Oleg, though he has an entire year at his disposal, didn't manage to learn how to solve number theory problems in 阅读全文
摘要：
题意翻译 Description 有一个长为nnn ，宽为mmm 的鱼缸，还有一个边长为rrr 的正方形渔网。你可以往鱼缸里放kkk 条鱼，问用渔网随机在浴缸里捞鱼的最大期望是多少。不懂什么是期望的自己去百度 Input 一行4个正整数代表n,m,r,kn, m, r, kn,m,r,k Outpu 阅读全文
摘要：
Since Grisha behaved well last year, at New Year's Eve he was visited by Ded Moroz who brought an enormous bag of gifts with him! The bag contains n s 阅读全文
摘要：
A. Tricky Alchemy time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output During the winter holid 阅读全文