Rezumat problemă

NrNod

#756

Se consideră un arbore binar în care nodurile memorează numere naturale nenule. Să se determine câte noduri din arbore au un singur descendent direct.

Programul citește lista valorilor din arbore, dată în ordinea parcurgerii în preordine.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Structuri de date arborescente Arbori binari

Rezolvă

Detalii

Problema	NrNod	Operații I/O	nrnod.in/nrnod.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64745774	Utilizator	Neacsu Alexandru Denis (Neacsu_Alexandru682)
Fișier	nrnod.cpp	Dimensiune	856 B
Data încărcării	27 Mai 2026, 13:17	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

nrnod.cpp: In function ‘void creare(nod**, int)’:
nrnod.cpp:11:11: error: cannot convert ‘ref’ {aka ‘nod*’} to ‘nod**’ in assignment
   11 |         r=(ref)malloc(sizeof(nod));
      |           ^~~~~~~~~~~~~~~~~~~~~~~~
      |           |
      |           ref {aka nod*}
nrnod.cpp:12:12: error: request for member ‘inf’ in ‘* r’, which is of pointer type ‘ref’ {aka ‘nod*’} (maybe you meant to use ‘->’ ?)
   12 |         r->inf=x;
      |            ^~~
nrnod.cpp:13:12: error: request for member ‘st’ in ‘* r’, which is of pointer type ‘ref’ {aka ‘nod*’} (maybe you meant to use ‘->’ ?)
   13 |         r->st =r->dr=NULL;
      |            ^~
nrnod.cpp:13:19: error: request for member ‘dr’ in ‘* r’, which is of pointer type ‘ref’ {aka ‘nod*’} (maybe you meant to use ‘->’ ?)
   13 |         r->st =r->dr=NULL;
      |                   ^~
nrnod.cpp:16:19: error: request for member ‘st’ in ‘* r’, which is of pointer type ‘ref’ {aka ‘nod*’} (maybe you meant to use ‘->’ ?)
   16 |         creare(r->st,y);
      |                   ^~
nrnod.cpp:18:19: error: request for member ‘dr’ in ‘* r’, which is of pointer type ‘ref’ {aka ‘nod*’} (maybe you meant to use ‘->’ ?)
   18 |         creare(r->dr,y);
      |                   ^~
nrnod.cpp:15:15: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   15 |         fscanf(f,"%d",&y);
      |         ~~~~~~^~~~~~~~~~~
nrnod.cpp:17:15: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   17 |         fscanf(f,"%d",&y);
      |         ~~~~~~^~~~~~~~~~~
nrnod.cpp: In function ‘int main()’:
nrnod.cpp:37:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   37 |     fscanf(f,"%d",&x);
      |     ~~~~~~^~~~~~~~~~~

Cum funcționează evaluarea?