1817.-finding-the-users-active-minutes.md

1817. Finding the Users Active Minutes

class Solution:
    def findingUsersActiveMinutes(self, logs: List[List[int]], k: int) -> List[int]:
        
        cnt = collections.defaultdict(set)
        for i,m in logs:
            cnt[i].add(m)
        c =collections.defaultdict(int)
        for _, v in cnt.items():
            c[len(v)] += 1
            
        ans = [0] * k 
        # print(ans )
        
        for i in range(1, k + 1):
            ans[i - 1] = c[i]
        return ans