Submission #32895144

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Source Code Expand

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Numerics;

namespace Tasks
{
    public class B
    {
        public static void Main()
        {
            var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
            Console.SetOut(sw);
            Solve();
            Console.Out.Flush();
        }

        public static void Solve()
        {
            var N = Scanner.Scan<int>();
            var A = new int[N][];
            for (var i = 0; i < N; i++)
            {
                A[i] = Scanner.ScanLine().Select(x => x - '0').ToArray();
            }

            var D8 = new[] { (1, 0), (-1, 0), (0, 1), (0, -1), (1, 1), (1, -1), (-1, 1), (-1, -1) };

            long answer = 0;
            for (var i = 0; i < N; i++)
            {
                for (var j = 0; j < N; j++)
                {
                    foreach (var (di, dj) in D8)
                    {
                        long v = 0;
                        for (var k = 0; k < N; k++)
                        {
                            var ii = (i + di * k + N) % N;
                            var jj = (j + dj * k + N) % N;
                            v = v * 10 + A[ii][jj];
                        }

                        answer = Math.Max(answer, v);
                    }
                }
            }

            Console.WriteLine(answer);
        }

        public static class Printer
        {
            public static void Print<T>(T source) => Console.WriteLine(source);
            public static void Print1D<T>(IEnumerable<T> source, string separator = "") =>
                Console.WriteLine(string.Join(separator, source));
            public static void Print1D<T, U>(IEnumerable<T> source, Func<T, U> selector, string separator = "") =>
                Console.WriteLine(string.Join(separator, source.Select(selector)));
            public static void Print2D<T>(IEnumerable<IEnumerable<T>> source, string separator = "") =>
                Console.WriteLine(string.Join("\n", source.Select(x => string.Join(separator, x))));
            public static void Print2D<T, U>(IEnumerable<IEnumerable<T>> source, Func<T, U> selector, string separator = "") =>
                Console.WriteLine(string.Join("\n", source.Select(x => string.Join(separator, x.Select(selector)))));
            public static void Print2D<T>(T[,] source, string separator = "")
            {
                var (h, w) = (source.GetLength(0), source.GetLength(1));
                for (var i = 0; i < h; i++)
                    for (var j = 0; j < w; j++)
                    {
                        Console.Write(source[i, j]);
                        Console.Write(j == w - 1 ? "\n" : separator);
                    }
            }
            public static void Print2D<T, U>(T[,] source, Func<T, U> selector, string separator = "")
            {
                var (h, w) = (source.GetLength(0), source.GetLength(1));
                for (var i = 0; i < h; i++)
                    for (var j = 0; j < w; j++)
                    {
                        Console.Write(selector(source[i, j]));
                        Console.Write(j == w - 1 ? "\n" : separator);
                    }
            }
        }

        public static class Scanner
        {
            public static string ScanLine() => Console.ReadLine()?.Trim() ?? string.Empty;
            public static string[] Scan() => ScanLine().Split(' ');
            public static T Scan<T>() where T : IConvertible => Convert<T>(Scan()[0]);
            public static (T1, T2) Scan<T1, T2>() where T1 : IConvertible where T2 : IConvertible
            {
                var line = Scan();
                return (Convert<T1>(line[0]), Convert<T2>(line[1]));
            }
            public static (T1, T2, T3) Scan<T1, T2, T3>() where T1 : IConvertible where T2 : IConvertible where T3 : IConvertible
            {
                var line = Scan();
                return (Convert<T1>(line[0]), Convert<T2>(line[1]), Convert<T3>(line[2]));
            }
            public static (T1, T2, T3, T4) Scan<T1, T2, T3, T4>() where T1 : IConvertible where T2 : IConvertible where T3 : IConvertible where T4 : IConvertible
            {
                var line = Scan();
                return (Convert<T1>(line[0]), Convert<T2>(line[1]), Convert<T3>(line[2]), Convert<T4>(line[3]));
            }
            public static (T1, T2, T3, T4, T5) Scan<T1, T2, T3, T4, T5>() where T1 : IConvertible where T2 : IConvertible where T3 : IConvertible where T4 : IConvertible where T5 : IConvertible
            {
                var line = Scan();
                return (Convert<T1>(line[0]), Convert<T2>(line[1]), Convert<T3>(line[2]), Convert<T4>(line[3]), Convert<T5>(line[4]));
            }
            public static (T1, T2, T3, T4, T5, T6) Scan<T1, T2, T3, T4, T5, T6>() where T1 : IConvertible where T2 : IConvertible where T3 : IConvertible where T4 : IConvertible where T5 : IConvertible where T6 : IConvertible
            {
                var line = Scan();
                return (Convert<T1>(line[0]), Convert<T2>(line[1]), Convert<T3>(line[2]), Convert<T4>(line[3]), Convert<T5>(line[4]), Convert<T6>(line[5]));
            }
            public static IEnumerable<T> ScanEnumerable<T>() where T : IConvertible => Scan().Select(Convert<T>);
            private static T Convert<T>(string value) where T : IConvertible => (T)System.Convert.ChangeType(value, typeof(T));
        }
    }
}

Submission Info

Judge Result