Spiral

//This Code Draw a Spiral
#include<iostream>
#include<vector>
#include<map>
#include<algorithm>
#include<clocale>
#include<cmath>

using namespace std;

int a[200][200];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int n;
    cin >> n;
    int i = 2;
    int x = (n + 1) / 2, y = x;
    a[x][x] = 1;
    x++;
    while(i < n*n)
    {
        do
        {
            a[y][x] = i;
            x++;
            i++;
        }
        while(a[y - 1][x - 1] > 0);

        x--;
        y--;

        do
        {
            a[y][x] = i;
            y--;
            i++;
        }while(a[y + 1][x - 1] > 0);

        y++;
        x--;

        do
        {
            a[y][x] = i;
            x--;
            i++;
        }while(a[y+1][x+1] > 0);

        x++;
        y++;

        do
        {
            a[y][x] = i;
            y++;
            i++;
        }while(a[y - 1][x+ 1] > 0);

        y--;
        x++;
    }
    for(int k = 1; k <= n; k++)
    {
        for(int j = 1; j <= n; j++)
            cout << a[k][j] <<' ';
        cout << "\n";
    }
    return 0;
}