spirala pbinfo

#include <iostream>
#include<fstream>
using namespace std;
ifstream f("spirala.in");
ofstream g("spirala.out");
int n,a[101][101],i,j,k;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
            f>>a[i][j];
    for(k=1;k<=n/2;k++)
    {
        for(j=k;j<=n-k+1;j++)
            g<<a[k][j]<<" ";
        for(i=k+1;i<=n-k+1;i++)
            g<<a[i][n-k+1]<<" ";
       for(j=n-k;j>=k;j--)
        g<<a[n-k+1][j]<<" ";
       for(i=n-k;i>=k+1;i--)
        g<<a[i][k]<<" ";
    }
    if(n%2!=0)
        g<<a[n/2+1][n/2+1];
    return 0;
}