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  1. Frequency Queries
  2. Discussions

Frequency Queries

  • hubrando + 1 comment

    My question is why is this better than using a defaultdict and a Counter? my solution is as follows:

    def freqQuery(queries):
    occ_dict = defaultdict(int)
    result_array = []
    for op in queries:
        if op[0] == 1:
            occ_dict[op[1]] += 1
        elif op[0] == 2:
            if occ_dict[op[1]] > 0:
                occ_dict[op[1]] -= 1
        elif op[0] == 3:
            occ_counter = Counter(occ_dict)
            if occ_counter[op[1]]:
                result_array.append(1)
            else:
                result_array.append(0)
    return(result_array)

    Any help would be appreciated, thanks!

    • naomi_nguyen7 + 0 comments

      Hi, do you notice that each time, the query starts with 3, it has to count occ_dict all over again? In my code, when the query starts with 3, it just has to search for it, none additional counting is required