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June 7, 2026 07:50
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Parcurgere in latime - graful este reprezentat prin matricea de adiacenta
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| //BFS > graful este reprezentat prin matricea de adiacenta | |
| #include <iostream> | |
| #include <queue> | |
| #include <vector> | |
| using namespace std; | |
| class GrafMatrice { | |
| private: | |
| vector<vector<int>> mat; | |
| vector<bool> vizitat; | |
| int n; | |
| public: | |
| GrafMatrice(int n): n(n), mat(n, vector<int>(n)), vizitat(n, false) {} | |
| void citeste() { | |
| freopen("graf.in", "r", stdin); | |
| cout<<"Introduceti matricea de adiacenta:"; | |
| for(int i = 0; i < n; ++i) { | |
| for(int j = 0; j < n; ++j) { | |
| cin>>mat[i][j]; | |
| } | |
| } | |
| } | |
| void BFS(int start) { | |
| queue<int> coada; | |
| vizitat[ start ] = true; | |
| coada.push( start ); | |
| while(!coada.empty()) { | |
| int nod = coada.front(); | |
| coada.pop(); | |
| cout<<(nod) << " "; | |
| for(int vecin = 0; vecin < n; ++vecin) { | |
| if(mat[nod][vecin] == 1 && !vizitat[vecin]) { | |
| vizitat[vecin] = true; | |
| coada.push(vecin); | |
| } | |
| } | |
| } | |
| } | |
| bool esteVizitat(int i) {return vizitat[i];} | |
| int getN() {return n;} | |
| }; | |
| int main(int argc, char const *argv[]) { | |
| freopen("graf.in", "r", stdin); | |
| int n; | |
| cout<<"Numarul de noduri:"; | |
| cin>>n; | |
| GrafMatrice g( n ); | |
| cout<<"Parcurgere BFS: "; | |
| for(int i = 0; i < n; ++i) { | |
| if(!g.esteVizitat(i)) { | |
| g.BFS(i); | |
| } | |
| } | |
| cout<<endl; | |
| return 0; | |
| } | |
| /* | |
| Input | |
| 6 | |
| 0 1 1 0 0 0 | |
| 1 0 0 1 1 0 | |
| 1 0 0 0 1 0 | |
| 0 1 0 0 0 1 | |
| 0 1 1 0 0 1 | |
| 0 0 0 1 1 0 | |
| */ |
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