摘要：
Petya and Vasya are competing with each other in a new interesting game as they always do. At the beginning of the game Petya has to come up with an a 阅读全文
摘要：
Young wilderness explorers set off to their first expedition led by senior explorer Russell. Explorers went into a forest, set up a camp and decided t 阅读全文
摘要：
Let's define the following recurrence: an+1=an+minDigit(an)⋅maxDigit(an).an+1=an+minDigit(an)⋅maxDigit(an). Here minDigit(x)minDigit(x) and maxDigit(x 阅读全文