Rezumat problemă

Kruskal

#592

Se dă un graf neorientat ponderat conex cu n vârfuri și m muchii – în care fiecare muchie are asociat un cost, număr natural strict pozitiv. Folosind algoritmul lui Kruskal, determinați un arbore parțial de cost minim.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Teoria Grafurilor Grafuri cu costuri Algoritmul lui Kruskal

Rezolvă

Detalii

Problema	Kruskal	Operații I/O	kruskal.in/kruskal.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#45429423	Utilizator	anca andrei (andreiANCA)
Fișier	kruskal.cpp	Dimensiune	1.22 KB
Data încărcării	12 Octombrie 2023, 11:48	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

kruskal.cpp:3:10: error: #include expects "FILENAME" or <FILENAME>
 #include cmath;

          ^
kruskal.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("kruskal.in");

             ^
kruskal.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("kruskal.out");

              ^
kruskal.cpp:11:10: error: 'M' was not declared in this scope
 muchie v[M*(M-1)/2], sol[M];

          ^
kruskal.cpp:11:13: error: 'M' was not declared in this scope
 muchie v[M*(M-1)/2], sol[M];

             ^
kruskal.cpp:11:26: error: 'M' was not declared in this scope
 muchie v[M*(M-1)/2], sol[M];

                          ^
kruskal.cpp:12:9: error: 'M' was not declared in this scope
 int viz[M],n,m,cost;

         ^
kruskal.cpp:2:11: error: expected unqualified-id before numeric constant
 #define m 103

           ^
kruskal.cpp:12:14: note: in expansion of macro 'm'
 int viz[M],n,m,cost;

              ^
kruskal.cpp: In function 'void citire()':
kruskal.cpp:15:5: error: reference to 'cin' is ambiguous
     cin>>n>>m;

     ^
kruskal.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("kruskal.in");

          ^
In file included from kruskal.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
kruskal.cpp:17:9: error: reference to 'cin' is ambiguous
         cin>>v[i].x>>v[i].y>>v[i].c;

         ^
kruskal.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("kruskal.in");

          ^
In file included from kruskal.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
kruskal.cpp:17:14: error: 'v' was not declared in this scope
         cin>>v[i].x>>v[i].y>>v[i].c;

              ^
kruskal.cpp: In function 'void ord()':
kruskal.cpp:24:12: error: 'v' was not declared in this scope
         if(v[i].c>v[j].c)

            ^
kruskal.cpp:21:12: warning: unused variable 'aux' [-Wunused-variable]
     muchie aux;

            ^
kruskal.cpp: In function 'void kruskal()':
kruskal.cpp:31:9: error: 'viz' was not declared in this scope
         viz[i]=i;

         ^
kruskal.cpp:36:12: error: 'viz' was not declared in this scope
         if(viz[v[i].x]!=viz[v[i].y])

            ^
kruskal.cpp:36:16: error: 'v' was not declared in this scope
         if(viz[v[i].x]!=viz[v[i].y])

                ^
kruskal.cpp:39:9: error: 'sol' was not declared in this scope
         sol[k]=v[i];

         ^
kruskal.cpp:40:9: error: 'cost' was not declared in this scope
         cost=cost+v[i].c;

         ^
kruskal.cpp: In function 'void afis()':
kruskal.cpp:61:5: error: reference to 'cout' is ambiguous
     cout<<cost<<"\n";

     ^
kruskal.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("kruskal.out");

          ^
In file included from kruskal.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
kruskal.cpp:61:11: error: 'cost' was not declared in this scope
     cout<<cost<<"\n";

           ^
kruskal.cpp:63:9: error: reference to 'cout' is ambiguous
         cout<<sol[i].x<<" "<<sol[i].y;

         ^
kruskal.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("kruskal.out");

          ^
In file included from kruskal.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
kruskal.cpp:63:15: error: 'sol' was not declared in this scope
         cout<<sol[i].x<<" "<<sol[i].y;

               ^
kruskal.cpp: In function 'int main()':
kruskal.cpp:69:5: error: expected ';' before 'kruskal'
     kruskal();

     ^

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