The integers represent card values of the initial deck for that game. Write a program that will play games of 10-20-30 given initial card decks as input.Įach input set consists of a sequence of 52 integers separated by spaces and/or ends of line.

It is also possible to have a draw if neither of the previous two conditions ever occurs. You lose if you are unable to deal a card. That is, subsequent play skips over the position that the now-empty pile occupied. If a pile contains only three cards when the three sum to 10, 20, or 30, then the pile 'disappears' when the cards are picked up. If a queen were played instead of the six, 5 + 9 + 10 = 24, and 5 + 3 + 10 = 18, but 7 + 3 + 10 = 20, so the last three cards would be picked up, leaving the pile as 5 9. Also, the bottommost card in the deck is now the 6, the card above it is the 9, and the one above the 9 is the 5. The new contents of the pile after picking up those three cards becomes 7 3. The first two cards plus the last card (5 + 9 + 6) sum to 20. Continue until no more sets of three can be picked up from the pile.įor example, suppose a pile contains 5 9 7 3 where the 5 is at the first card of the pile, and then a 6 is played. Picking up three cards may expose three more cards that can be picked up. Collect the cards in the order they appear on the pile and put them at the bottom of the deck. For this problem, always check the pile in the order just described. If so, pick up the three cards and place them on the bottom of the deck. After playing a card on the rightmost pile, the next pile upon which you play a card is the leftmost pile.įor each card placed on a pile, check that pile to see if one of the following three card combinations totals 10, 20, or 30. You begin by dealing out seven cards, left to right forming seven piles. Cards are dealt from the top of the deck. The value of each of the other cards is the face value of the card (2, 3, 4, etc.). The value of a face card (king, queen, jack) is 10. A simple solitaire card game called 10-20-30 uses a standard deck of 52 playing cards in which suit is irrelevant.

Simple rules of solitaire