Level 1Exercise #11

Invert a mapping

Swap keys and values in a mapping whose values are guaranteed unique.

Sample Test Cases

Example #1

Input:invert({"passed": 1, "failed": 2})

Output:{1:'passed',2:'failed'}

Reveal Reference Solution

def invert(mapping: dict[str, int]) -> dict[int, str]:
    return {value: key for key, value in mapping.items()}

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