Rezumat problemă

Stiva

#875

Să se scrie un program care gestionează o stivă de numere întregi. Inițial stiva este vidă. Programul va citi de la tastatură o listă de operații, care pot fi:

• push X – adaugă valoarea întreagă X pe stivă;
• pop – elimină elementul din vârful stivei;
• top – afișează elementul din vârful stivei.

Programul va realiza asupra stivei operațiile citite, în ordine. Afișările se fac pe ecran, câte o valoare pe linie.

Consola Candale Silviu (silviu) Silviu Candale ușoară

Clasa 10 Structuri de date liniare Stiva

Rezolvă

Detalii

Problema	Stiva	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64295235	Utilizator	muntean ariana (ariana_mnt)
Fișier	stiva.cpp	Dimensiune	1.01 KB
Data încărcării	28 Aprilie 2026, 12:59	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

stiva.cpp:7:8: error: ‘prim’ declared as reference but not initialized
    7 | }*p, *&prim;
      |        ^~~~
stiva.cpp: In function ‘void push(nod&, int)’:
stiva.cpp:12:16: error: no match for ‘operator=’ (operand types are ‘nod’ and ‘nod*’)
   12 |     { prim=new nod;
      |                ^~~
stiva.cpp:4:8: note: candidate: ‘nod& nod::operator=(const nod&)’
    4 | struct nod{
      |        ^~~
stiva.cpp:4:8: note:   no known conversion for argument 1 from ‘nod*’ to ‘const nod&’
stiva.cpp:4:8: note: candidate: ‘nod& nod::operator=(nod&&)’
stiva.cpp:4:8: note:   no known conversion for argument 1 from ‘nod*’ to ‘nod&&’
stiva.cpp:13:9: error: base operand of ‘->’ has non-pointer type ‘nod’
   13 |     prim->info=x;
      |         ^~
stiva.cpp:14:9: error: base operand of ‘->’ has non-pointer type ‘nod’
   14 |     prim->adr=NULL;
      |         ^~
stiva.cpp:16:1: error: ‘else’ without a previous ‘if’
   16 | else
      | ^~~~
stiva.cpp:20:12: error: cannot convert ‘nod’ to ‘nod*’ in assignment
   20 |     p->adr=prim;
      |            ^~~~
      |            |
      |            nod
stiva.cpp:21:10: error: no match for ‘operator=’ (operand types are ‘nod’ and ‘nod*’)
   21 |     prim=p;
      |          ^
stiva.cpp:4:8: note: candidate: ‘nod& nod::operator=(const nod&)’
    4 | struct nod{
      |        ^~~
stiva.cpp:4:8: note:   no known conversion for argument 1 from ‘nod*’ to ‘const nod&’
stiva.cpp:4:8: note: candidate: ‘nod& nod::operator=(nod&&)’
stiva.cpp:4:8: note:   no known conversion for argument 1 from ‘nod*’ to ‘nod&&’
stiva.cpp: In function ‘void top(nod*)’:
stiva.cpp:36:18: error: invalid initialization of reference of type ‘nod&’ from expression of type ‘nod*’
   36 |             push(prim, x);
      |                  ^~~~
stiva.cpp:10:15: note: in passing argument 1 of ‘void push(nod&, int)’
   10 | void push(nod&prim, int x)
      |           ~~~~^~~~
stiva.cpp:40:12: error: ‘pop’ was not declared in this scope; did you mean ‘op’?
   40 |            pop (prim);
      |            ^~~
      |            op
stiva.cpp:44:8: error: return-statement with a value, in function returning ‘void’ [-fpermissive]
   44 | return 0;
      |        ^
stiva.cpp: In function ‘int main()’:
stiva.cpp:54:9: error: ‘in’ was not declared in this scope; did you mean ‘i’?
   54 |         in>>op;
      |         ^~
      |         i
stiva.cpp:58:18: error: invalid initialization of reference of type ‘nod&’ from expression of type ‘nod*’
   58 |             push(prim, x);
      |                  ^~~~
stiva.cpp:10:15: note: in passing argument 1 of ‘void push(nod&, int)’
   10 | void push(nod&prim, int x)
      |           ~~~~^~~~
stiva.cpp:62:13: error: ‘pop’ was not declared in this scope; did you mean ‘op’?
   62 |             pop(prim);
      |             ^~~
      |             op

Cum funcționează evaluarea?