Daybreaking

摘要： Description Student Andrey has been skipping physical education lessons for the whole term, and now he must somehow get a passing grade on this subjec 阅读全文

摘要： Description Today an outstanding event is going to happen in the forest — hedgehog Filya will come to his old fried Sonya! Sonya is an owl and she sle 阅读全文

摘要： 母函数，又称生成函数。 母函数就是一列用来展示一串数字的挂衣架。 ——赫伯特·唯尔夫 。 母函数问题一般是，对于一个问题，抽象出一个生成函数。 以换硬币问题为例，有一元的，四元的，九元的........硬币无数个，问y元钱有几种组合方式。 设一个数的指数为y（组成y元钱），系数为有几种组合方式，开始 阅读全文

摘要： On the way to school, Karen became fixated on the puzzle game on her phone! The game is played as follows. In each level, you have a grid with n rows 阅读全文

摘要： To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the 阅读全文

摘要： Long story short, shashlik is Miroslav's favorite food. Shashlik is prepared on several skewers simultaneously. There are two states for each skewer: 阅读全文

摘要： You are given a ternary string (it is a string which consists only of characters '0', '1' and '2'). You can swap any two adjacent (consecutive) charac 阅读全文

摘要： You are given an array of integers. Vasya can permute (change order) its integers. He wants to do it so that as many as possible integers will become 阅读全文

摘要： Berland shop sells nn kinds of juices. Each juice has its price cici. Each juice includes some set of vitamins in it. There are three types of vitamin 阅读全文

摘要： Description 农民约翰有三个容量分别是A,B,C升的桶，A,B,C分别是三个从1到20的整数，最初，A和B桶都是空的，而C桶是装满牛奶的。有时，约翰把牛奶从一个桶倒到另一个桶中，直到被灌桶装满或原桶空了。当然每一次灌注都是完全的。由于节约，牛奶不会有丢失。 写一个程序去帮助约翰找出当A桶是 阅读全文