Rezumat problemă

Dijkstra

#588

Se dă un graf orientat ponderat – în care fiecare arc are asociat un cost, număr natural strict pozitiv, și un nod p. Să se determine, folosind algoritmul lui Dijkstra, costul minim al drumului de la p la fiecare nod al grafului.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Teoria Grafurilor Grafuri cu costuri Algoritmul lui Dijkstra

Rezolvă

Detalii

Problema	Dijkstra	Operații I/O	dijkstra.in/dijkstra.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#40827889	Utilizator	Bogdan Marius (Bogdan357)
Fișier	dijkstra.cpp	Dimensiune	1.10 KB
Data încărcării	24 Decembrie 2022, 11:29	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

dijkstra.cpp:9:59: error: wrong number of template arguments (0, should be 1)
 priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>>q;

                                                           ^
In file included from /usr/include/c++/4.8/queue:63:0,
                 from dijkstra.cpp:1:
/usr/include/c++/4.8/bits/stl_function.h:222:12: error: provided for 'template<class _Tp> struct std::greater'
     struct greater : public binary_function<_Tp, _Tp, bool>
            ^
dijkstra.cpp:9:60: error: template argument 3 is invalid
 priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>>q;

                                                            ^
dijkstra.cpp:9:63: error: invalid type in declaration before ';' token
 priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>>q;

                                                               ^
dijkstra.cpp: In function 'int main()':
dijkstra.cpp:24:7: error: request for member 'push' in 'q', which is of non-class type 'int'
     q.push({0,p});

       ^
dijkstra.cpp:25:14: error: request for member 'empty' in 'q', which is of non-class type 'int'
     while(!q.empty()){

              ^
dijkstra.cpp:26:27: error: request for member 'top' in 'q', which is of non-class type 'int'
      pair<int,int> acum=q.top();

                           ^
dijkstra.cpp:27:8: error: request for member 'pop' in 'q', which is of non-class type 'int'
      q.pop();

        ^
dijkstra.cpp:36:15: error: request for member 'push' in 'q', which is of non-class type 'int'
             q.push({distMin[x.first],x.first});

               ^
dijkstra.cpp:40:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i=1;i<distMin.size();i++){

                               ^

Cum funcționează evaluarea?