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	#64775151	Utilizator	Budea Daniel Mircea (danib8410)
Fișier	permutari.cpp	Dimensiune	631 B
Data încărcării	29 Mai 2026, 13:40	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp: In function ‘bool valid(int)’:
permutari.cpp:10:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   10 |     for(int i=1; i<k; i++)
      |     ^~~
permutari.cpp:13:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   13 |         return true;
      |         ^~~~~~
permutari.cpp: In function ‘void backRec(int)’:
permutari.cpp:29:18: error: ‘backRe’ was not declared in this scope; did you mean ‘backRec’?
   29 |             else backRe(k+1);}
      |                  ^~~~~~
      |                  backRec
permutari.cpp:26:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   26 |         if(valid(k))
      |           ^
permutari.cpp:31:13: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   31 |     int main(){
      |             ^~
permutari.cpp:31:13: note: remove parentheses to default-initialize a variable
   31 |     int main(){
      |             ^~
      |             --
permutari.cpp:31:13: note: or replace parentheses with braces to value-initialize a variable
permutari.cpp:31:15: error: a function-definition is not allowed here before ‘{’ token
   31 |     int main(){
      |               ^
permutari.cpp:34:19: error: expected ‘}’ at end of input
   34 |         return 0;}
      |                   ^
permutari.cpp:23:20: note: to match this ‘{’
   23 | void backRec(int k){
      |                    ^

Cum funcționează evaluarea?