while loops

Exercise

1. Read a whole number n a (int(input())).
2. Write one while-Loop that starts with a counting variable n starts and all numbers from n down to 0 outputs — each on its own line, in descending order.

When entering 3 so should 3, 2, 1, 0 (one line each). Only output these numbers.

Exercise

1. Read a whole number n a (int(input())).
2. Set a counting variable (Start 1) and a sum variable (Start 0).
3. Write one while-Loop that runs as long as the counting variable <= n is. In the block, add the counting variable to the sum and then increase the counting variable by 1.
4. Pass after the loop only the sum with print() out.

When entering 5 is the sum 1+2+3+4+5 = 15, at 10 it is 55. Just output that one number.

Exercise

1. Read two positive integers: first a Date, then one Border (two int(input())).
2. Write one while-Loop with a counting variable that starts at the start value and as long as runs as it <= the limit is.
3. Output the counting variable in each run (separate line) and then multiply it by 2, so it doubles with each run.

At start value 2 and border 50 results in that 2, 4, 8, 16, 32 (one per line). Once the value exceeds the limit, do not output it. Output only these numbers.

If the starting value equals the limit, print it exactly once. If the starting value exceeds the limit, print nothing.

Exercise

Here you read nothing but set the values yourself.

1. Choose one yourself even Upper limit and assign it to a variable n to (e.g. B. the value 10).
2. Build with one while-Loop a list with the name gerade on that all even numbers of 2 up to (including) n contains. Idea: Start at 2, append the current counter to the list and then increment it each time 2.
3. Give the finished list gerade at the end.

At the upper limit 10 arises e.g. B. the output [2, 4, 6, 8, 10]. Which even number you choose is up to you - it is checked that the list is constructed and output correctly.

Exercise

1. Set the predefined password using PWD = "1234" as the assignment.
2. Read along input() to read a password attempt. Compare the input as a string with PWD.
3. While the input is incorrect, output Falsches Passwort and ask for the password again inside a whileloop.
4. Once the password is correct, the loop ends. Then output the following once: Login ok out.

When you run the code, an input dialog opens for each attempt. Try an incorrect password first, then the correct one. If the first input is correct, no error message appears.

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