Temp Tracker for Interview Cake

TempTracker.cs

    public class TempTracker
    {
        // For mode
        // Array of 0s at indices 0..110
        private readonly int[] _occurrences = new int[111];

        private int _maxOccurrences;

        // For mean
        private int _totalNumbers;

        private int _totalSum;

        // Mean should be double
        public double? Mean { get; private set; }

        public int? Mode { get; private set; }

        // For min and max
        public int? Min { get; private set; }

        public int? Max { get; private set; }

        public bool Insert(int temperature)
        {
            // For mode
            _occurrences[temperature]++;
            if (_occurrences[temperature] > _maxOccurrences)
            {
                Mode = temperature;
                _maxOccurrences = _occurrences[temperature];
            }

            // For mean
            _totalNumbers++;
            _totalSum += temperature;
            Mean = (double) _totalSum / _totalNumbers;

            // For min and max
            if (Max == null || temperature > Max)
            {
                Max = temperature;
            }

            if (Min == null || temperature < Min)
            {
                Min = temperature;
            }

            return true;
        }
    }