Rezumat problemă

Roy-Floyd

#589

Se dă un graf orientat ponderat cu n noduri și m arce – în care fiecare arc are asociat un cost, număr natural strict pozitiv. Folosind algoritmul Roy-Floyd, construiți matricea drumurilor minime.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Teoria Grafurilor Grafuri cu costuri Roy-Warshall-Floyd

Rezolvă

Detalii

Problema	Roy-Floyd	Operații I/O	roy-floyd.in/roy-floyd.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64609026	Utilizator	Pislaru Alex (Alex20081)
Fișier	roy-floyd.cpp	Dimensiune	922 B
Data încărcării	18 Mai 2026, 14:11	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

roy-floyd.cpp:1:19: error: missing terminating > character
    1 | #include <iostream
      |                   ^
roy-floyd.cpp:2:1: error: expected unqualified-id before ‘>’ token
    2 | >
      | ^
roy-floyd.cpp:6:1: error: ‘ifstream’ does not name a type
    6 | ifstream cin("roy-floyd.in");
      | ^~~~~~~~
roy-floyd.cpp:7:1: error: ‘ofstream’ does not name a type
    7 | ofstream cout("roy-floyd.out");
      | ^~~~~~~~
roy-floyd.cpp: In function ‘int main()’:
roy-floyd.cpp:23:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
   23 |     cin >> n >> m;
      |     ^~~
      |     std::cin
In file included from roy-floyd.cpp:1:
/usr/include/c++/13/iostream:62:18: note: ‘std::cin’ declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
roy-floyd.cpp:40:31: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   40 |             if(c[i][j] != Inf)cout << c[i][j] << ' ';
      |                               ^~~~
      |                               std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
roy-floyd.cpp:41:18: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   41 |             else cout << "-1 ";
      |                  ^~~~
      |                  std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
roy-floyd.cpp:42:9: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   42 |         cout << '\n';
      |         ^~~~
      |         std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~

Cum funcționează evaluarea?