# Random Walk/유상욱

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

int main()
{
int count, question, random, x = 0 , y = 0;
cout << "칸 수를 입력하시오 : ";
cin >> question;
int ** data = new int *[question];
for(int i=0 ; i<question ; i++)
data[i] = new int [question];
for ( i = 0 ; i < question ; i++ )
{
for ( int j = 0 ; j < question ; j++ )
data[i][j] = 0;
}
srand((time(0)));
while (1)
{
count = 0;
random = rand() % 4;
cout << random << endl;
switch ( random )
{
case 0:		//	위
if ( (y - 1) != -1 )
{
data[x][y-1]++;
y--;
cout << "위" << endl;
}
break;
case 1:		// 아래
if ( y + 1 != question )
{
data[x][y+1]++;
y++;
cout << "아래" << endl;
}
break;
case 2:		// 좌
if ( x - 1 != -1 )
{
data[x-1][y]++;
x--;
cout << "좌" << endl;
}
break;
case 3:		// 우
if ( x + 1 != question )
{
data[x+1][y]++;
x++;
cout << "우" << endl;
}
break;
}

for ( i = 0 ; i < question ; i++ )
{
for ( int j = 0 ; j < question ; j++ )
{
if (data[i][j] == 0)
count++;
}
}
if ( count == 0 )
break;
}

for ( i = 0 ; i < question ; i++ )
{
for ( int j = 0 ; j < question ; j++ )
cout << data[j][i] << "\t";
cout << endl;
}
for(i=0;i<question;i++)
delete [] data [i];
delete [] data;
return 0;
}