Random Walk2/곽세환

~cpp 
#include <iostream>
#include <fstream>
using namespace std;

void main()
{  
	ifstream fin("input.txt");
    ofstream fout("output.txt");

	int m, n;		
	fin >> m >> n;
	
	int i, j, k;
	
	int **array = new int*[m];
	for (i = 0; i < m; i++)
		array[i] = new int[n];

	for (i = 0; i < m; i++)
		for (j = 0; j < n; j++)
			array[i][j] = 0;
	
	int x, y;
	fin >> y >> x;

	array[y][x] = 1;

	while (fin.get() != '\n')
		;

	char temp;
	char dir_arr[80];
	int dirsu = 0;

	while ((temp = fin.get()) && temp != '\n') //방향있는 한 줄 입력받음
		dir_arr[dirsu++] = temp;

	int cx = x, cy = y;
	bool flag;
	int cnt = 0;

	for (k = 0; k < dirsu; k++)
	{
		switch (dir_arr[k])
		{
		case '7':
			cx--;
			cy--;
			break;
		case '0':
			cy--;
			break;
		case '1':
			cx++;
			cy--;
			break;
		case '6':
			cx--;
			break;
		case '2':
			cx++;
			break;
		case '5':
			cx--;
			cy++;
			break;
		case '4':
			cy++;
			break;
		case '3':
			cx++;
			cy++;
			break;
		}
		if (cx == -1)
			cx = n - 1;
		else if (cx == n)
			cx = 0;
		if (cy == -1)
			cy = m - 1;
		else if (cy == m)
			cy = 0;
		
		array[cy][cx]++;
		cnt++;

		flag = true;
		for (i = 0; i < m; i++)
		{
			for (j = 0; j < n; j++)
				if (array[i][j] == 0)
				{
					flag = false;
					break;
				}
			if (flag == false)
				break;
		}
		if (flag == false)
			continue;
		else
			break;
	}
	fout << cnt << endl;
	for (i = 0; i < m; i++)
	{
		for (j = 0; j < n; j++)
			fout << array[i][j] << " ";
		fout << endl;
	}
}