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Jan 20th, 2020
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C++ 0.49 KB | None | 0 0
  1. #include <iostream>
  2. #include<fstream>
  3. using namespace std;
  4. int st[100],n;
  5. void tipar()
  6. {
  7.  for(int i=1;i<=n;i++)
  8.  cout<<st[i]<<" ";
  9.  cout<<"\n";
  10. }
  11. int solutie(int k)
  12. {
  13. if(k==n)
  14. return 1;
  15. return 0;
  16. }
  17. int valid(int k)
  18. {
  19. int i;
  20. for(i=1;i<k;i++)
  21. {
  22. if(st[i]==st[k])
  23. return 0;
  24. }
  25. return 1;
  26. }
  27. void bktr(int k)
  28. {
  29. int i;
  30. for(i=1;i<=n;i++)
  31. {
  32. st[k]=i;
  33. if(valid(k))
  34. {
  35. if(solutie(k))
  36. tipar();
  37. else
  38. bktr(k+1);
  39. }
  40. }
  41. }
  42. int main()
  43. {
  44.     cin>>n;
  45.     bktr(1);
  46.     return 0;
  47. }
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