LC 1207 [E] Unique Number of Occurrences - ALawliet/algorithms GitHub Wiki
class Solution:
def uniqueOccurrences(self, arr: List[int]) -> bool:
count = Counter(arr)
return len(count.values()) == len(set(count.values()))
class Solution:
def uniqueOccurrences(self, arr: List[int]) -> bool:
count = Counter(arr)
return len(count.values()) == len(set(count.values()))