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Feb 24th, 2020
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  1. #include <iostream>
  2.  
  3. using namespace std;
  4. int n,z,s,i,j,a[201][201];
  5. int main()
  6. {
  7. cin>>n>>z;
  8. for(i=1;i<=n;i++)
  9. for(j=1;j<=n;j++)
  10. cin>>a[i][j];
  11. for(i=1;i<=n;i++)
  12. {
  13. for(j=1;j<=n;j++)
  14. if(z==1 && (i<j && i+j<n+1))
  15. s=s+a[i][j];
  16. else if(z==2 && (i<j && i+j>n+1))
  17. s=s+a[i][j];
  18. else
  19. if(z==3 && (i>j && i+j>n+1))
  20. s=s+a[i][j];
  21. else if(z==4 && (i>j && i+j<n+1))
  22. s=s+a[i][j];
  23. }
  24. cout<<s<<endl;
  25. return 0;
  26. }
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