Rezumat problemă

ecuatii_grad_2

#1458

Dându-se o ecuaţie de gradul 2, să se scrie un program care determină soluţiile acestei ecuaţii.

Fișiere Antal Alexandru (Courage) Alexandru Antal medie

Clasa 10 Şiruri de caractere Probleme diverse

Rezolvă

Detalii

Problema	ecuatii_grad_2	Operații I/O	ecuatii.in/ecuatii.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#58917936	Utilizator	Balanica Giulia (Julesss)
Fișier	ecuatii_grad_2.cpp	Dimensiune	1.93 KB
Data încărcării	03 Septembrie 2025, 12:23	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

ecuatii_grad_2.cpp: In function 'void rezolvare_delta()':
ecuatii_grad_2.cpp:20:9: error: reference to 'cout' is ambiguous
         cout << -1 << endl;

         ^
ecuatii_grad_2.cpp:9:10: note: candidates are: std::ofstream cout
 ofstream cout("ecautii.out");

          ^
In file included from ecuatii_grad_2.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
ecuatii_grad_2.cpp:28:9: error: reference to 'cout' is ambiguous
         cout << fixed << setprecision(2) << x1 << endl;

         ^
ecuatii_grad_2.cpp:9:10: note: candidates are: std::ofstream cout
 ofstream cout("ecautii.out");

          ^
In file included from ecuatii_grad_2.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
ecuatii_grad_2.cpp:30:9: error: reference to 'cout' is ambiguous
         cout << fixed << setprecision(2) << x1 << " " << x2 << endl;

         ^
ecuatii_grad_2.cpp:9:10: note: candidates are: std::ofstream cout
 ofstream cout("ecautii.out");

          ^
In file included from ecuatii_grad_2.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
ecuatii_grad_2.cpp: In function 'int compunere_numar(int)':
ecuatii_grad_2.cpp:35:11: warning: statement has no effect [-Wunused-value]
     for (i; isdigit(ecuatie[i]); i++)

           ^
ecuatii_grad_2.cpp: In function 'void cautare_parametrii()':
ecuatii_grad_2.cpp:58:5: error: reference to 'cin' is ambiguous
     cin >> ecuatie;

     ^
ecuatii_grad_2.cpp:8:10: note: candidates are: std::ifstream cin
 ifstream cin("ecuatii.in");

          ^
In file included from ecuatii_grad_2.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
ecuatii_grad_2.cpp:73:11: warning: statement has no effect [-Wunused-value]
     for (i; ecuatie[i] != '-' && ecuatie[i] != '+'; i ++)

           ^
ecuatii_grad_2.cpp:87:11: warning: statement has no effect [-Wunused-value]
     for (i; ecuatie[i] != '-' && ecuatie[i] != '+'; i ++)

           ^

Cum funcționează evaluarea?