Submission #3591580

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Source Code Expand

using System;

namespace AtCoder
{
    class B_KagamiMochi085
    {
        public static void Main()
        {
            var N = int.Parse(Console.ReadLine());
            var map = new Map<int>(N);
            for (var i = 0; i < N; ++i)
            {
                map.Add(int.Parse(Console.ReadLine()));
            }
            Console.WriteLine(map.Length);
        }

        private class Map<T> where T : IComparable
        {
            public int Length { get; private set; }
            private T[] array = null;

            public Map(int _size)
            {
                this.Length = 0;
                this.array = new T[_size];
            }

            public void Add(T _value)
            {
                if (this.Find(_value)) { return; }

                this.array[this.Length] = _value;
                ++this.Length;
            }

            private bool Find(T _value)
            {
                for (var i = 0; i < this.Length; ++i)
                {
                    if (_value.Equals(this.array[i])) { return true; }
                }
                return false;
            }
        }
    }
}

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