Rezumat problemă

Bipartit

#471

Se dă lista muchiilor unui graf neorientat cu n vârfuri, etichetate de la 1 la n, precum si o mulțime A de vârfuri ale grafului. Considerăm mulțimea B formată din vărfurile grafului care nu aparțin lui A. Să se verifice dacă graful este bipartit peste partiția formată din mulțimile A și B.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Teoria Grafurilor Probleme elementare cu grafuri neorientate

Rezolvă

Detalii

Problema	Bipartit	Operații I/O	bipartit.in/bipartit.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#58306464	Utilizator	Barna George (barnageorg)
Fișier	bipartit.cpp	Dimensiune	710 B
Data încărcării	26 Mai 2025, 12:37	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

bipartit.cpp:4:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("bipartit.in");

             ^
bipartit.cpp:5:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("bipartit.out");

              ^
bipartit.cpp:6:14: error: redefinition of 'int n'
 int ok,n,x,y,n,a[101][101],y[101];

              ^
bipartit.cpp:6:8: error: 'int n' previously declared here
 int ok,n,x,y,n,a[101][101],y[101];

        ^
bipartit.cpp:6:33: error: conflicting declaration 'int y [101]'
 int ok,n,x,y,n,a[101][101],y[101];

                                 ^
bipartit.cpp:6:12: error: 'y' has a previous declaration as 'int y'
 int ok,n,x,y,n,a[101][101],y[101];

            ^
bipartit.cpp: In function 'int main()':
bipartit.cpp:9:5: error: reference to 'cin' is ambiguous
     cin>>n>>m;

     ^
bipartit.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("bipartit.in");

          ^
In file included from bipartit.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
bipartit.cpp:9:13: error: 'm' was not declared in this scope
     cin>>n>>m;

             ^
bipartit.cpp:12:9: error: reference to 'cin' is ambiguous
         cin>>x>>y;

         ^
bipartit.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("bipartit.in");

          ^
In file included from bipartit.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
bipartit.cpp:15:5: error: reference to 'cin' is ambiguous
     cin>>k;

     ^
bipartit.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("bipartit.in");

          ^
In file included from bipartit.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
bipartit.cpp:15:10: error: 'k' was not declared in this scope
     cin>>k;

          ^
bipartit.cpp:18:9: error: reference to 'cin' is ambiguous
         cin>>x;

         ^
bipartit.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("bipartit.in");

          ^
In file included from bipartit.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
bipartit.cpp:19:9: error: 'v' was not declared in this scope
         v[x]=1;

         ^
bipartit.cpp:22:9: error: 'i' was not declared in this scope
     for(i=1;i<=n;i++)

         ^
bipartit.cpp:24:13: error: 'j' was not declared in this scope
         for(j=1;j<=i+1;j++)

             ^
bipartit.cpp:25:30: error: 'v' was not declared in this scope
             if(a[i][j]==1 && v[i]==v[j])

                              ^
bipartit.cpp:29:9: error: reference to 'cout' is ambiguous
         cout<<"DA";

         ^
bipartit.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("bipartit.out");

          ^
In file included from bipartit.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
bipartit.cpp:31:9: error: reference to 'cout' is ambiguous
         cout<<"NU";

         ^
bipartit.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("bipartit.out");

          ^
In file included from bipartit.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^

Cum funcționează evaluarea?