글 읽기 - 왜 런타임 에러가...

n_thalpy 2년 전 0

런타임 에러가 날 만한 요소는 배열 외의것을 참조하는 경우밖에 없을것같은데
배열 밖의 것을 참조하는지에 대해서는 141~143 라인에서 처리하고 있습니다.
왜 런타임 에러가 나는걸까요
											using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AlgorithmTest
{
    class Vector<T>
    {
        public int dimension
        {
            get;
            private set;
        }
        public T[] data
        {
            get;
            private set;
        }
        public Vector (int dimension, T[] data)
        {
            if (dimension < 0 || data.Length != dimension)
                throw new Exception();

            this.dimension = dimension;
            this.data = data;
        }
        public Vector (int dimension)
        {
            if (dimension < 0)
                throw new Exception();

            this.dimension = dimension;
            this.data = new T[dimension];
        }
        public static Vector<T> operator+ (Vector<T> lhs, Vector<T> rhs)
        {
            if (lhs.dimension != rhs.dimension)
                throw new Exception();

            T[] newdata = new T[lhs.dimension];
            for (int i = 0; i < lhs.dimension; i++)
            {
                dynamic packet1 = lhs.data[i];
                dynamic packet2 = rhs.data[i];

                newdata[i] = packet1 + packet2;
            }

            return new Vector<T>(lhs.dimension, newdata);
        }
    }
    class Tomato
    {
        public enum TomatoStatus
        {
            Empty, Normal, Mature
        };
        public TomatoStatus status
        {
            get;
            private set;
        }
        public Tomato(TomatoStatus status)
        {
            this.status = status;
        }
        public Tomato(int status)
        {
            switch (status)
            {
                case 1:
                    this.status = TomatoStatus.Mature;
                    break;

                case 0:
                    this.status = TomatoStatus.Normal;
                    break;

                case -1:
                    this.status = TomatoStatus.Empty;
                    break;

                default:
                    throw new Exception();
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            string[] coll = Console.ReadLine().Split(' ');
            int n = int.Parse(coll[0]);
            int m = int.Parse(coll[1]);

            // Tomato[x, y]. 0 <= x < n, 0 <= y < m
            Tomato[,] tomatoarray = new Tomato[n, m];

            int remain = 0;
            List<Vector<int>> todo = new List<Vector<int>>();
            List<Vector<int>> memo = new List<Vector<int>>();
            for (int i = 0; i < m; i++)
            {
                coll = Console.ReadLine().Split(' ');
                for (int j = 0; j < n; j++)
                {
                    tomatoarray[j, i] = new Tomato(int.Parse(coll[j]));

                    if (tomatoarray[j, i].status == Tomato.TomatoStatus.Mature)
                        memo.Add(new Vector<int>(2, new int[] { j, i }));
                    else if (tomatoarray[j, i].status == Tomato.TomatoStatus.Normal)
                        remain++;
                }
            }

            int day = 0;
            bool changed = false;
            Vector<int>[] movement = new Vector<int>[4]
            {
                new Vector<int>(2, new int[2]{1, 0}),
                new Vector<int>(2, new int[2]{-1, 0}),
                new Vector<int>(2, new int[2]{0, 1}),
                new Vector<int>(2, new int[2]{0, -1})
            };
            while (true)
            {
                changed = false;
                todo.Clear();
                for (int i = 0; i < memo.Count; i++)
                    todo.Add(memo[i]);
                
                memo.Clear();

                for (int i = 0; i < todo.Count; i++)
                    for (int j = 0; j < 4; j++)
                    {
                        Vector<int> newposition = todo[i] + movement[j];

                        if (newposition.data[0] < 0 || newposition.data[0] >= n
                            || newposition.data[1] < 0 || newposition.data[1] >= m)
                            continue;
                        else
                            if (tomatoarray[newposition.data[0], newposition.data[1]].status == Tomato.TomatoStatus.Normal)
                            {
                                tomatoarray[newposition.data[0], newposition.data[1]] = new Tomato(Tomato.TomatoStatus.Mature);
                                memo.Add(newposition);

                                remain--;
                                changed = true;
                            }
                    }

                if (!changed)
                    break;

                day++;
            }

            if (remain != 0)
                Console.WriteLine("-1");
            else
                Console.WriteLine(day);
        }
    }
}

										
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왜 런타임 에러가...

n_thalpy 2년 전 0

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