https://www.acmicpc.net/problem/14753 14753번: MultiMax There are n cards, each with an integer on it where two or more cards can have the same integer. From these cards, we want to select two or three cards such that the product of numbers on the selected cards is maximum. For example, assume that there are 6 www.acmicpc.net 문제 There are n cards, each with an integer on it where two or more card..