摘要:
Vova is playing a computer game. There are in total nn turns in the game and Vova really wants to play all of them. The initial charge of his laptop b 阅读全文
摘要:
Polycarp knows that if the sum of the digits of a number is divisible by 3, then the number itself is divisible by 3. He assumes that the numbers, the 阅读全文
摘要:
Arkady invited Anna for a dinner to a sushi restaurant. The restaurant is a bit unusual: it offers nn pieces of sushi aligned in a row, and a customer 阅读全文