Combined exercises

Exercise

Read the number first n with int(input()) one and then in a loop the n Numbers - one of each int(input()) — into a list zahlen.

1. Write a function pruefe_zahlen(zahlen) that come with one for-Loop checks each number to see if it is even is (remainder 0 when divided by 2), and puts a suitable text in a result list for each number: for an even number <zahl> ist gerade, otherwise <zahl> ist ungerade (with the respective number instead <zahl>). Return the list.
2. In the main block: call function and each Output the text of the return list on a separate line.
3. Example: input 4, then 1 2 3 4 results in four lines 1 ist ungerade / 2 ist gerade / 3 ist ungerade / 4 ist gerade.

Exercise

Here will nothing read in: You define the function and choose the values to try out yourself. The runner then checks the function directly.

1. Write a function begruessung(alter): That's it alter under 18, it should return the text Hallo Kind return, otherwise Hallo Erwachsener. Exactly 18 is already considered an adult.
2. Call the function in the block if __name__ == "__main__": twice twice: once with an age below 18 and once with an age of at least 18. Output both return values.
3. This is how you make both branches visible: once Hallo Kind, once Hallo Erwachsener.

Exercise

Lis n as an integer int(input()) there.

1. Write a function summe_bis(n) that come with one while-Loop the sum of all numbers from 1 to n added up and returns the result.
2. Call the function with the read in n up and give only the number returned.
3. For n = 5 is the output 15, at n = 10 then 55.

Exercise

Read the number first n with int(input()) one and then in a loop the n Notes — one each int(input()) — into a list noten.

1. Write a function zeige_noten(noten) that come with one for-loop and if/elif translates each note into exactly this text and returns the texts as a list: 1 → sehr gut, 2 → gut, 3 → befriedigend, 4 → ausreichend, everything else (e.g. 5) → nicht bestanden.
2. In the main block: call function and each Output the text of the return list on a separate line.
3. Example: input 3, then 1 3 5 results in the three lines sehr gut / befriedigend / nicht bestanden. Pay attention to the exact spelling of the texts.

Exercise

Here too nothing read in: You define the function and choose the passwords to try it out yourself. The runner then checks the function directly.

1. Write a function login_test(passwort) with one while loop for a maximum of 3 attempts. The attempt number starts at 1. If the password matches "1234" match, the function should two Return values: the text Login ok and the current attempt number. If the password is still incorrect after 3 iterations, the function returns the text Falsches Passwort together with the number 3 back.
2. Call the function in the main block twice on — once with "1234", once with a wrong password — and unpack it two Returns in each case text and anzahl_versuche.
3. Give each first text (line 1), then anzahl_versuche (line 2). With "1234" appears Login ok / 1, with an incorrect password Falsches Passwort / 3.

Note: The password is passed here once as a parameter (no input() per experiment). The whileThe loop therefore primarily demonstrates incrementing the attempt counter and returning early when the login succeeds. Tip: In Python, a function can return multiple comma-separated values.

Exercise

Read three whole numbers one after the other a, b and c one — one each int(input()).

1. Write a function quadrat(zahl), which returns the square of its argument — i.e number multiplied by itself.
2. Call the function for each of the three numbers and output the three squares — each on its own line, in the order in which it was entered.
3. Example: input 2, 5, 8 results in the three lines 4 / 25 / 64.

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