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	#64236709	Utilizator	Gavrila Mihai (Mihai6421)
Fișier	permutari.cpp	Dimensiune	636 B
Data încărcării	24 Aprilie 2026, 14:29	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
    1 | #include
      |         ^
permutari.cpp:3:14: error: extended character “ is not valid in an identifier
    3 | ifstream cin(“permutari.in”);
      |              ^
permutari.cpp:3:25: error: extended character ” is not valid in an identifier
    3 | ifstream cin(“permutari.in”);
      |                         ^
permutari.cpp:4:15: error: extended character “ is not valid in an identifier
    4 | ofstream cout(“permutari.out”);
      |               ^
permutari.cpp:4:26: error: extended character ” is not valid in an identifier
    4 | ofstream cout(“permutari.out”);
      |                          ^
permutari.cpp:7:49: error: extended character “ is not valid in an identifier
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                                 ^
permutari.cpp:7:51: error: extended character “ is not valid in an identifier
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                                   ^
permutari.cpp:3:1: error: ‘ifstream’ does not name a type
    3 | ifstream cin(“permutari.in”);
      | ^~~~~~~~
permutari.cpp:4:1: error: ‘ofstream’ does not name a type
    4 | ofstream cout(“permutari.out”);
      | ^~~~~~~~
permutari.cpp: In function ‘void afisare()’:
permutari.cpp:7:33: error: ‘cout’ was not declared in this scope
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                 ^~~~
permutari.cpp:1:1: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
  +++ |+#include <iostream>
    1 | #include
permutari.cpp:7:41: error: ‘x’ was not declared in this scope
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                         ^
permutari.cpp:7:49: error: ‘“’ was not declared in this scope
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                                 ^
permutari.cpp:7:54: error: ‘cout’ was not declared in this scope
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                                      ^~~~
permutari.cpp:7:54: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
permutari.cpp:7:62: error: ‘endl’ was not declared in this scope
    7 | { for(int i = 1 ; i <= n ; i++) cout << x[i] << “ “; cout << endl;
      |                                                              ^~~~
permutari.cpp:1:1: note: ‘std::endl’ is defined in header ‘<ostream>’; did you forget to ‘#include <ostream>’?
  +++ |+#include <ostream>
    1 | #include
permutari.cpp: In function ‘int valid(int)’:
permutari.cpp:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
   11 | }
      | ^
permutari.cpp: In function ‘int main()’:
permutari.cpp:13:3: error: ‘cin’ was not declared in this scope
   13 | { cin >> n; back(1);///incep generarea de la 1 return 0;
      |   ^~~
permutari.cpp:13:3: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
permutari.cpp:13:13: error: ‘back’ was not declared in this scope
   13 | { cin >> n; back(1);///incep generarea de la 1 return 0;
      |             ^~~~

Cum funcționează evaluarea?