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python error
At UFRJ, the professor of Physics wishes to make a survey among his students to discover the highest and the lowest. For this you must make a program that asks each of the students their height and their name. The end of the data typing should be given when the user type 0 (zero) for the height. At the end of the program, the name and height of the highest and lowest should also be indicated, as well as the average of the students' heights.
The graduation committee of the Administration course will sell raffles to raise funds. To facilitate sales you should develop a program that shows the amount of notes for change. The program should ask the amount of the raffle and the amount of the payment despising the cents. Also consider that the available banknotes are 50, 20, 10, 5, 2 and the currency of 1, and that none of them are missing from the cash.
Help me!