Rezumat problemă

Coada1

#1598

Se consideră C o coadă de numere naturale, iniţial vidă. Se definesc 2 tipuri de operaţii.

Operaţia 1 : push X, adaugă elementul X în coadă. Dacă X există deja în coadă, se scot toate elementele din coadă, pana la întâlnirea lui, inclusiv X.

Exemplu: 
	C: 2 4 5 1 6
	Push 5
	C: 1 6 5 ( s-au scos 2, 4, 5).

Operaţia 2: query X, cere afişarea poziţiei elementului X în coada C. Dacă elementul nu există în coadă, se afişează -1.

Exemplu:
	C: 2 5 1 3 7
	Query 1
	Răspuns: 3

Fișiere Dragan Andrei-Gabriel (dragangabriel) medie

Clasa 10 Structuri de date liniare Coada

Rezolvă

Detalii

Problema	Coada1	Operații I/O	coada1.in/coada1.out
Limita timp	0.05 secunde	Limita memorie	Total: 16 MB / Stivă 2 MB
Id soluție	#64742459	Utilizator	Munteanu-Andor Xenia (Xeni08)
Fișier	coada1.cpp	Dimensiune	766 B
Data încărcării	27 Mai 2026, 10:38	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

coada1.cpp:3:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type
    3 | ifstream cin("coada1.in");
      |             ^
coada1.cpp:4:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type
    4 | ofstream cout("coada1.out");
      |              ^
coada1.cpp: In function ‘int main()’:
coada1.cpp:12:5: error: reference to ‘cin’ is ambiguous
   12 |     cin>>n;
      |     ^~~
In file included from coada1.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
coada1.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("coada1.in");
      |          ^~~
coada1.cpp:13:5: error: reference to ‘cin’ is ambiguous
   13 |     cin.get();
      |     ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
coada1.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("coada1.in");
      |          ^~~
coada1.cpp:16:9: error: reference to ‘cin’ is ambiguous
   16 |         cin>>s>>x;
      |         ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
coada1.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("coada1.in");
      |          ^~~
coada1.cpp:17:12: error: ‘strcmp’ was not declared in this scope
   17 |         if(strcmp(s,"query")==0)
      |            ^~~~~~
coada1.cpp:2:1: note: ‘strcmp’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | using namespace std;
coada1.cpp:20:23: warning: right operand of comma operator has no effect [-Wunused-value]
   20 |             for(j=p, j<=u; j++)
      |                      ~^~~
coada1.cpp:20:31: error: expected ‘;’ before ‘)’ token
   20 |             for(j=p, j<=u; j++)
      |                               ^
      |                               ;
coada1.cpp:23:22: error: reference to ‘cout’ is ambiguous
   23 |             if(j<=u) cout<<j-p+1<<"\n";
      |                      ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
coada1.cpp:4:10: note:                 ‘<typeprefixerror>cout’
    4 | ofstream cout("coada1.out");
      |          ^~~~
coada1.cpp:24:18: error: reference to ‘cout’ is ambiguous
   24 |             else cout<<-1<<"\n";
      |                  ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
coada1.cpp:4:10: note:                 ‘<typeprefixerror>cout’
    4 | ofstream cout("coada1.out");
      |          ^~~~

Cum funcționează evaluarea?