Submission #1357610

---

Source Code Expand

using System;

namespace arc069_b
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            string s = Console.ReadLine();
            bool[] animals = new bool[n + 1];
            animals[0] = true; animals[1] = true;
            for (int i = 2; i <= n; i++)
            {
                if ((s[(i - 1) % n] == 'o') == (animals[i - 1] == true)) animals[i] = animals[i - 2];
                else animals[i] = !animals[i - 2];
            }
            if (animals[0] == animals[n])
            {
                for (int i = 0; i < n; i++)
                {
                    Console.Write(animals[i] ? 'S' : 'W');
                }
                Console.WriteLine();
            }
            else
            {
                animals[0] = true; animals[1] = false;
                for (int i = 2; i <= n; i++)
                {
                    if ((s[(i - 1) % n] == 'o') == (animals[i - 1] == true)) animals[i] = animals[i - 2];
                    else animals[i] = !animals[i - 2];
                }
                if (animals[0] == animals[n])
                {
                    for (int i = 0; i < n; i++)
                    {
                        Console.Write(animals[i] ? 'S' : 'W');
                    }
                    Console.WriteLine();
                }
                else
                {
                    animals[0] = false; animals[1] = true;
                    for (int i = 2; i <= n; i++)
                    {
                        if ((s[(i - 1) % n] == 'o') == (animals[i - 1] == true)) animals[i] = animals[i - 2];
                        else animals[i] = !animals[i - 2];
                    }
                    if (animals[0] == animals[n])
                    {
                        for (int i = 0; i < n; i++)
                        {
                            Console.Write(animals[i] ? 'S' : 'W');
                        }
                        Console.WriteLine();
                    }
                    else
                    {
                        animals[0] = false; animals[1] = false;
                        for (int i = 2; i <= n; i++)
                        {
                            if ((s[(i - 1) % n] == 'o') == (animals[i - 1] == true)) animals[i] = animals[i - 2];
                            else animals[i] = !animals[i - 2];
                        }
                        if (animals[0] == animals[n])
                        {
                            for (int i = 0; i < n; i++)
                            {
                                Console.Write(animals[i] ? 'S' : 'W');
                            }
                            Console.WriteLine();
                        }
                        else
                        {
                            Console.WriteLine(-1);
                        }
                    }
                }
            }
        }
    }
}

Submission Info

Judge Result