Rezumat problemă

PermPF

#202

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

Fișiere Candale Silviu (silviu) medie

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	PermPF	Operații I/O	permpf.in/permpf.out
Limita timp	0.5 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64539489	Utilizator	Găvră Ioan (gavra_ioan)
Fișier	permpf.cpp	Dimensiune	686 B
Data încărcării	13 Mai 2026, 10:29	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permpf.cpp:4:14: error: expected initializer before ‘<<’ token
    4 | ofstream fout<<("permpf.out")
      |              ^~
permpf.cpp: In function ‘int valid(int)’:
permpf.cpp:10:8: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   10 |     if(st[k]==st[i])
      |        ^~
      |        std
permpf.cpp:14:12: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   14 |         if(st[i]==i)
      |            ^~
      |            std
permpf.cpp: In function ‘int solutie(int)’:
permpf.cpp:21:16: error: ‘n’ was not declared in this scope
   21 |     return (k==n);
      |                ^
permpf.cpp: In function ‘void tipar(int)’:
permpf.cpp:27:5: error: ‘fout’ was not declared in this scope
   27 |     fout<<st[i]<<' ';
      |     ^~~~
permpf.cpp:27:11: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   27 |     fout<<st[i]<<' ';
      |           ^~
      |           std
permpf.cpp:28:5: error: ‘fout’ was not declared in this scope
   28 |     fout<<endl;
      |     ^~~~
permpf.cpp: In function ‘void back(int)’:
permpf.cpp:33:16: error: ‘n’ was not declared in this scope
   33 |     for(i=1;i<=n;i++)
      |                ^
permpf.cpp:35:5: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   35 |     st[k]=i;
      |     ^~
      |     std
permpf.cpp:36:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   36 |     if(valid(k)) if(solutie(k)) tipar(k);
      |       ^
permpf.cpp: In function ‘int main()’:
permpf.cpp:42:10: error: ‘n’ was not declared in this scope; did you mean ‘yn’?
   42 |     fin>>n;
      |          ^
      |          yn

Cum funcționează evaluarea?