Compare complexities of the realizations of the vending machine specified in the Exercise 12.10 by D-flip-flops and SR-flip-flops.
Exercise 12.10
A vending machine sales candies at the price of 70 cents. The machine accepts coins of 10, 20, and 50 cents. When the amount of inserted coins is equal or greater than 70 cents, the candy is offered and change, if any, returned. Then, machine waits for another customer. Determine the state table and draw the corresponding state table for this vending machine.