Submission #4627235

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Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;
using static System.Console;
using static System.Convert;
using static System.Math;
//using static System.Globalization.CultureInfo;

class Program
{
    static void Main(string[] args)
    {
        var hw = Input.ar;
        var gred = Enumerable.Repeat(0, hw[0]).Select(v => ReadLine()).ToArray();
        var g = new[] { 0, 0, hw[0]/2 * (hw[1] /2)  };
        if (hw[0] % 2 == 1 && hw[1] % 2 == 1)
            g[0] = 1;
        if (hw[0] % 2 == 1)
            g[1] += hw[1] / 2;
        if (hw[1] % 2 == 1)
            g[1] += hw[0] / 2;
        var dic = new Dictionary<char, int>();
        for (var i = 0; i < hw[0]; i++)
            for (var j = 0; j < hw[1]; j++)
                if (dic.ContainsKey(gred[i][j]))
                    dic[gred[i][j]]++;
                else dic[gred[i][j]] = 1;
        var one = 0;
        var two = 0;
        foreach (var val in dic.Values)
        {
            if (val % 2 == 1) one++;
            if (val % 4 > 1) two++;
        }
        if (one != g[0]) { WriteLine("No");return; }
        if (two != g[1]) { WriteLine("No");return; }
        WriteLine("Yes");
    }
}

public class Input
{
    public static string read => ReadLine();
    public  static int[] ar => Array.ConvertAll(read.Split(' '), int.Parse);
    public  static int num => ToInt32(read);
    public static long[] arL => Array.ConvertAll(read.Split(' '), long.Parse);
    public  static long numL => ToInt64(read);
    public static int[][] twodim(int num)
        => Enumerable.Repeat(0, num).Select(v => ar).ToArray();
    public static long[][] twodimL(int num)
        => Enumerable.Repeat(0, num).Select(v => arL).ToArray();
    public  const string Alfa = "abcdefghijklmnopqrstuvwxyz";
    public  const int MOD = 1000000007;
}

Submission Info

Judge Result