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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int n;
  5.  
  6. int main() {
  7. 	cin>>n;
  8. 	int a[n][n]={};
  9. 	int nr=0,nc=n/2,tr,tc;
  10. 	for(int i=1;i<=n*n;i++){
  11. 		a[nr][nc]=i;
  12. 		/*for(int k=0;k<n;k++){
  13. 			for(int j=0;j<n;j++) cout<<a[k][j]<<" ";
  14. 			cout<<"\n";
  15. 		}cout<<"\n";*/
  16. 		tr=(nr-1+n)%n;
  17. 		tc=(nc+1+n)%n;
  18. 		//cout<<"		"<<tr<<" "<<tc<<"\n";
  19. 		if(a[tr][tc]>0)nr++;
  20. 		else{
  21. 			nr=tr;
  22. 			nc=tc;
  23. 		}//cout<<"		"<<nr<<" "<<nc<<"\n";
  24. 	}for(int i=0;i<n;i++){
  25. 		for(int j=0;j<n;j++) cout<<a[i][j]<<" ";
  26. 		cout<<"\n";
  27. 	}
  28. }
Success #stdin #stdout 0s 5308KB
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stdin
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3
stdout
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8 1 6 
3 5 7 
4 9 2
https://ideone.com/21NIUn
c153
language:
C++ (gcc 8.3)
created:
16 days ago
visibility:
secret

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