Description: vending machine design requirements : 1. Slot machines have a hole when they put a coin, but can invest more consecutive coin. Machines can identify the amount of coins to one yuan, 5 cents and 10 cents. Customers can choose the beverage prices one billion dollar five cents, three two yuan. Every time they can sell a bottle beverage. 2. When buying drinks first choice beverage prices again coin, once the total amount of coins or more drinks prices, machines issued instructions signals and continue to invest rejection of the coins. Coin customers, identify key activated, the machine will issue a drink and have sought coins, and if the vote is insufficient. issued less-signal instructions. In less funding, customers can continue to buy coin can also be canceled button, the machine will have
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