class Solution {
    public int[] findingUsersActiveMinutes(int[][] logs, int k) {
        int[] ans = new int[k];
        Map<Integer, Set<Integer>> map = new HashMap<>();
        for(int[] log: logs){
            map.putIfAbsent(log[0], new HashSet<>());
            map.get(log[0]).add(log[1]);
        }
        for(Map.Entry<Integer, Set<Integer>> entry : map.entrySet()){
            ans[entry.getValue().size()-1]++;
        }
        return ans;
    }
}