Finding the Users Active Minutes
You are given the logs for users' actions on LeetCode, and an integer k. The logs are represented by a 2D integer array logs where each logs[i] = [IDi, timei] indicates that the user with IDi performed an action at the minute timei.
Multiple users can perform actions simultaneously, and a single user can perform multiple actions in the same minute.
The user active minutes (UAM) for a given user is defined as the number of unique minutes in which the user performed an action on LeetCode. A minute can only be counted once, even if multiple actions occur during it.
You are to calculate a 1-indexed array answer of size k such that, for each j (1 <= j <= k), answer[j] is the number of users whose UAM equals j.
Return the array answer as described above.
logs = [[0,5],[1,2],[0,2],[0,5],[1,3]], k = 5[0,2,0,0,0]answer[2] is 2 and all other values are 0.logs = [[1,1],[2,2],[2,3]], k = 4[1,1,0,0]answer[1] = 1, answer[2] = 1, and the remaining values are 0.Constraints
- 1 <= logs.length <= 10^4
- 0 <= IDi <= 10^9
- 1 <= timei <= 10^5
- k is in the range [The maximum UAM for a user, 10^5].