Introduction - If you have any usage issues, please Google them yourself
VI analog vending machines selling three commodities (sugar, $ 0.8, $ 0.6 chips, gum $ 0.4) vending machines only accept $ 5, $ 1 bill, 25 cents, 10 cents, 5 cents coins. The total amount of money and the difference between the actual check input, if not invest more alert and lights, too much input, output recovered the money and the number of users of each coin denomination.