摘要：Vasya is an administrator of a public page of organization "Mouse and keyboard" and his everyday duty is to publish news from the world of competitive 阅读全文

摘要：You are given a string s consisting of lowercase Latin letters. Character c is called k dominant iff each substring of s with length at least k contai 阅读全文

摘要：D. Peculiar apple tree time limit per test : 1 second memory limit per test : 256 megabytes input : standard input output : standard output In Arcady' 阅读全文