Write a number in binary

Python Advanced astronaut ages teen+

The problem

Write a function to_binary(n). It gives back the binary digits of a whole number n (0 or more) as text. Example: 5 becomes "101". Do not use the built-in bin() function.

You will practice: binary numbers, while loops, remainder (%) and whole-number division (//), building text

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Write a number in binary

The problem

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