Submission #3235917

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Source Code Expand

using System.Collections.Generic;
using static System.Console;
using static System.Convert;

class Program
{
    static void Main(string[] args)
    {
        var num = ToInt32(ReadLine());
        var r = new HashSet<int>();
        for(var i = 0; i < num; i++)
        {
            r.Add(ToInt32(ReadLine()));
        }
        WriteLine(r.Count);
    }
}

Submission Info

Judge Result