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muie badii

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Jan 14th, 2020
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  1. #include <fstream>
  2.  
  3. using namespace std;
  4.  
  5. bool a[105][105];
  6. int n, viz[105];
  7. ifstream fin("componenteconexe.in");
  8. ofstream fout("componenteconexe.out");
  9.  
  10. void citire()
  11. {
  12. int x,y;
  13. fin>>n;
  14.  
  15. while(fin>>x>>y)
  16. a[x][y]=a[y][x]=1;
  17.  
  18.  
  19. }
  20. void DFS(int x,int k)
  21. {
  22. viz[x]=k;
  23. for(int i=1; i<=n ; i++)
  24. if (a[i][x]&&!viz[i])
  25. DFS(i,k);
  26. }
  27. void afisare(int k)
  28. {
  29. fout<<k<<'\n';
  30. for(int i=1; i<=k ; i++)
  31. {
  32. for(int j=1; j<=n; j++)
  33. if (viz[j]==i)
  34. fout<<j<<" ";
  35. fout<<'\n';
  36. }
  37. }
  38.  
  39. int main()
  40. {
  41. int k=0;
  42. citire();
  43. for(int i=1; i<=n; i++)
  44. if(!viz[i])
  45. {
  46. k++;
  47. DFS(i,k);
  48. }
  49. afisare(k);
  50.  
  51. return 0;
  52. }
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