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- #include <iostream>
- #include <fstream>
- using namespace std;
- ifstream f("matrice.txt");
- int a[10][10],n,m,x,y,s,suc[100],pred[100],nrc;
- void citire()
- {
- f>>n>>m;
- for(int i=1;i<=m;i++)
- {
- f>>x>>y;
- a[x][y]=1;
- }
- }
- void afisare()
- {
- for(int i=1;i<=n;i++)
- {
- for(int j=1;j<=n;j++)
- cout<<a[i][j]<<" ";
- cout<<endl;
- }
- }
- void dfsuc(int nod)
- {
- int k;
- suc[nod]=nrc;
- for(k=1;k<=n;k++)
- if(a[nod][k]==1&&suc[k]==0)
- dfsuc(k);
- }
- void dfpred(int nod)
- {
- int k;
- pred[nod]=nrc;
- for(k=1;k<=n;k++)
- if(a[k][nod]==1&&pred[k]==0)
- dfpred(k);
- }
- int main()
- { citire();
- afisare();
- nrc=1;
- for(int i=1;i<=n;i++)
- if(suc[i]==0)
- {
- dfsuc(i);
- dfpred(i);
- for(int j=1;j<=n;j++)
- if(suc[j]!=pred[j]) suc[j]=pred[j]=0;
- nrc++;
- }
- for(int i=1;i<nrc;i++)
- {
- cout<<"componenta tare conexa "<<i<<":"<<endl;
- for(int j=1;j<=n;j++)
- if(suc[j]==i) cout<<j<<" ";
- cout<<endl;
- }
- return 0;
- }
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