笔试题

#include<iostream>
using namespace std;

int main()
{
int n;
cin >> n;
int** array = new int*[n];
for (int i = 0; i < n; i++)
{
array[i] = new int[n];
for (int j = 0; j < n; j++)
{
array[i][j] = 0;
}
}
int dy[4] = { 1, 0, -1, 0 };
int dx[4] = { 0, 1, 0, -1 };
array[0][0] = 1;
int x=0,y=0, _x, _y;
int i = 0, j = 0;
while (i<4 && j<4)
{
_x = x + dx[i];
_y = y + dy[j];
if (_x >= 0 && _x < n&&_y >= 0 && _y < n)
{
if (array[_x][_y] == 0)
{
array[_x][_y] = array[x][y] + 1;
if (array[_x][_y] == n*n)break;
x = _x;
y = _y;
}
else
{
if (i == 3 && j == 3)
{
i = 0;
j = 0;
}
else
{
i++;
j++;
}
}
}
else
{
i++;
j++;
}
}

for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
cout << array[i][j] << " ";
}
cout << endl;
}
}