Rezumat problemă

Spirala

#211

Să se parcurgă o matrice pătratică în spirală în sensul acelor de ceasornic.

Fișiere Candale Silviu (silviu) medie

Clasa 9 Tablouri bidimensionale (matrice) Parcurgerea matricelor pătratice

Rezolvă

Detalii

Problema	Spirala	Operații I/O	spirala.in/spirala.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64374201	Utilizator	Tancu Tudor (TancuTudor)
Fișier	spirala.cpp	Dimensiune	661 B
Data încărcării	04 Mai 2026, 10:35	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

spirala.cpp: In function ‘int main()’:
spirala.cpp:8:5: error: reference to ‘cin’ is ambiguous
    8 |     cin >> n;
      |     ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:146,
                 from spirala.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
spirala.cpp:3:10: note:                 ‘std::ifstream cin’
    3 | ifstream cin("spirala.in");
      |          ^~~
spirala.cpp:11:9: error: reference to ‘cin’ is ambiguous
   11 |         cin >> a[i][j];
      |         ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
spirala.cpp:3:10: note:                 ‘std::ifstream cin’
    3 | ifstream cin("spirala.in");
      |          ^~~
spirala.cpp:16:43: error: reference to ‘cout’ is ambiguous
   16 |         for(j = i ; j <= n - i + 1 ; ++j) cout << a[i][j] << " ";
      |                                           ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
spirala.cpp:4:10: note:                 ‘std::ofstream cout’
    4 | ofstream cout("spirala.out");
      |          ^~~~
spirala.cpp:17:47: error: reference to ‘cout’ is ambiguous
   17 |         for(j = i + 1 ; j <= n - i + 1 ; ++j) cout << a[j][n - i + 1] << " ";
      |                                               ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
spirala.cpp:4:10: note:                 ‘std::ofstream cout’
    4 | ofstream cout("spirala.out");
      |          ^~~~
spirala.cpp:18:39: error: reference to ‘cout’ is ambiguous
   18 |         for(j = n - i ; j >= i ; j--) cout << a[n - i + 1][j]<< " ";
      |                                       ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
spirala.cpp:4:10: note:                 ‘std::ofstream cout’
    4 | ofstream cout("spirala.out");
      |          ^~~~
spirala.cpp:19:43: error: reference to ‘cout’ is ambiguous
   19 |         for(j = n - i ; j >= i + 1 ; j--) cout << a[j][i] << " ";
      |                                           ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
spirala.cpp:4:10: note:                 ‘std::ofstream cout’
    4 | ofstream cout("spirala.out");
      |          ^~~~

Cum funcționează evaluarea?