流水依依

摘要： C. New Year Ratings Changetime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne very well-known internet resource site (let's call it X) has come up with a New Year adventure. Specifically, they decided to give ratings to all visitors.There aren 阅读全文

摘要： A. New Year Candlestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputVasily the Programmer loves romance, so this year he decided to illuminate his room with candles.Vasily hasacandles.When Vasily lights up a new candle, it first burns for an hour a 阅读全文

摘要： C. Sereja and Prefixestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSereja loves number sequences very much. That's why he decided to make himself a new one following a certain algorithm.Sereja takes a blank piece of paper. Then he starts wr 阅读全文

摘要： A. Sereja and Dimatime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSereja and Dima play a game. The rules of the game are very simple. The players havencards in a row. Each card contains a number, all numbers on the cards are distinct. The players 阅读全文