_1207. Unique Number of Occurrences.md

1207. Unique Number of Occurrences

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First completed : September 25, 2024

Last updated : September 25, 2024

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Related Topics : Array, Hash Table

Acceptance Rate : 78.07 %

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Solutions

• e1207.py

Python

e1207.py

class Solution:
    def uniqueOccurrences(self, arr: List[int]) -> bool:
        cnt = Counter(arr)
        return len(cnt.values()) == len(set(cnt.values()))