Rezumat problemă

Permutari

#123

Se citeşte un număr natural nenul n. Să se afişeze, în ordine lexicografică, permutările mulţimii {1,2,..,n}.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	Permutari	Operații I/O	permutari.in/permutari.out
Limita timp	0.5 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64736363	Utilizator	Teslovan Mada (ciuri234)
Fișier	permutari.cpp	Dimensiune	651 B
Data încărcării	26 Mai 2026, 20:48	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp:7:5: error: expected ‘,’ or ‘;’ before ‘ofstream’
    7 |     ofstream fout("permutari.out")
      |     ^~~~~~~~
permutari.cpp: In function ‘int final(int)’:
permutari.cpp:13:11: error: ‘n’ was not declared in this scope
   13 |     if(k==n)
      |           ^
permutari.cpp: In function ‘int valid(int)’:
permutari.cpp:23:12: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   23 |         if(st[k]==st[i])
      |            ^~
      |            std
permutari.cpp: In function ‘void tipar(int)’:
permutari.cpp:32:15: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   32 |         cout<<st[i]<<" ";
      |               ^~
      |               std
permutari.cpp: In function ‘void back(int)’:
permutari.cpp:39:16: error: ‘n’ was not declared in this scope
   39 |     for(i=1;i<=n;i++)
      |                ^
permutari.cpp:40:9: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   40 |         st[k]=i;
      |         ^~
      |         std
permutari.cpp:41:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   41 |     if(valid(k))
      |       ^
permutari.cpp: In function ‘int final(int)’:
permutari.cpp:17:1: warning: control reaches end of non-void function [-Wreturn-type]
   17 | }
      | ^

Cum funcționează evaluarea?