Compress string

Medium

Compression is a way to represent data in a way that requires less space.

Let's say you're given a string of only letters:

bbbddrrrr

Write a function that returns the string in its compressed form:

b3d2r4

The output contains each letter in the input followed by the number of times it appears.

Try it

def compress(data: str) -> str:
    # implement compress
    return data

1def compress(data: str) -> str:
2    # implement compress
3    return data
4

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