C++ 螺旋队列

#include <iostream>
#include <iomanip>
using namespace std;
void fun(int x,int y)
{
if (x == y)
cout<<setw(3)<< 2*x+(1-2*x)*(1-2*x)<<" ";
if (x == -y+1 && x > 0)
cout<<setw(3)<< 1+(1-2*x)*(1-2*x)<<" ";
else if (x == -y+1 && x <= 0)
cout<<setw(3)<< 4*y-1+(1-2*y)*(1-2*y)<<" ";
else if (x > 0 && x > y && x > 1-y) //最右边一列
cout<<setw(3)<< x+y+(1-2*x)*(1-2*x)<<" ";
else if (y<0 && x >y && x < 1-y) //最上面一行
cout<<setw(3)<< x+y+(1-2*y)*(1-2*y)<<" ";
else if (y > 0 && x < y && x > 1-y) //最下面一行
cout<<setw(3)<< -x+3*y+(1-2*y)*(1-2*y)<<" ";
else if (x < 0 && x < y && x < 1-y) //最左边一列
cout<<setw(3)<< 3*x-y+(1-2*x)*(1-2*x)<<" ";
}
int main () {
for (int i = -5; i < 6; i++)
{
for (int j = -5; j < 6; j++)
{
fun(i,j);
}
cout<<endl;
}
return 0;
}