#include <bits/stdc++.h> using namespace std; int a[1010][1010]; int main() { int n; cin>>n; for(int i=1;i<=n;i++) { for(int j=1;j<=n;j++) { int x=min({i,j,n-i+1,n-j+1}); cout<<x<<" "; } cout<<endl; } return 0; }
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