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Sep 20th, 2019
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  1.  
  2. #include <iostream>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7. int a[20][20],i,j,n;
  8. cin>>n;
  9. for(i=1;i<=n;i++){
  10. for(j=1;j<=n;j++){
  11. a[i][j]=3;
  12. }
  13. }
  14. for(i=1;i<=n;i++){
  15. a[i][i]=0;
  16. a[i][n-i+1]=0;
  17. }
  18. for(i=1;i<=n/2;i++){
  19. for(j=i+1;j<=n-i;j++){
  20. a[i][j]=1;
  21. }
  22. }
  23.  
  24. for(i=n/2+1;i<=n;i++){
  25. for(j=n-i+2;j<i;j++){
  26. a[i][j]=2;
  27. }
  28. }
  29.  
  30. for(i=1;i<=n;i++){
  31. for(j=1;j<=n;j++) {
  32. cout<<a[i][j]<<' ';
  33. }
  34. cout<<endl;
  35. }
  36. return 0;
  37. }
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