DouKaku?

//http://ja.doukaku.org/
//http://ja.doukaku.org/99/投稿用
using System;
using System.Collections.Generic;

namespace どう書く_org文字列の八方向検索 {
    class Program {
        static string search;
        static List<string> list;
        static void Main(string[] args) {
            string sample = "リオウウリウ\nウオリウオリ\nオリリオリウ\nリリオオウオ";
            search = "ウオリ";
            char[] sp = new char[] { '\n' };
            int width = sample.Split(sp)[0].Length;
            int height = sample.Split(sp).Length;
            list = new List<string>(sample.Split(sp));
            for(int y = 0; y < list.Count; y++) { //縦ループ
                for(int x = 0; x < list[y].Length; x++) { //横ループ
                    for(int dx = -1; dx <= 1; dx++) { //左右方向ループ
                        for(int dy = -1; dy <= 1; dy++) { //上下方向ループ　-1は上、左　1は下、右を表す
                            try {
                                string strb = "";
                                for(int i = 0; i < search.Length; i++) { //iは移動量
                                    strb += list[y + i * dy][x + i * dx]; //移動方向をdy,dxで乗算することで反転
                                }
                                if(search == strb) {
                                    string directionStr = "";
                                    if(dx < 0) {
                                        directionStr += "左";
                                    } else if(dx > 0) {
                                        directionStr += "右";
                                    }
                                    if(dy < 0) {
                                        directionStr += "上";
                                    } else if(dy > 0) {
                                        directionStr += "下";
                                    }
                                    Console.WriteLine("(" + x + "," + y + ")" + "," + directionStr);
                                }
                            } catch(ArgumentOutOfRangeException) { } catch(IndexOutOfRangeException) { }
                        }
                    }
                }
            }
            Console.ReadLine();
        }
    }
}