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	#64924522	Utilizator	Gigi-Alesio Sachelarie (alesiosachelarie)
Fișier	permutari.cpp	Dimensiune	863 B
Data încărcării	14 Iunie 2026, 17:17	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp:2:1: error: ‘ifstream’ does not name a type
    2 | ifstream cin("permutari.in");
      | ^~~~~~~~
permutari.cpp:3:1: error: ‘ofstream’ does not name a type
    3 | ofstream cout("permutari.out");
      | ^~~~~~~~
permutari.cpp: In function ‘void back(int)’:
permutari.cpp:44:21: error: ‘cout’ was not declared in this scope
   44 |                     cout << x[j] << " ";
      |                     ^~~~
permutari.cpp:2:1: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
    1 | #include <fstream>
  +++ |+#include <iostream>
    2 | ifstream cin("permutari.in");
permutari.cpp:47:17: error: ‘cout’ was not declared in this scope
   47 |                 cout << '\n';
      |                 ^~~~
permutari.cpp:47:17: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
permutari.cpp: In function ‘int main()’:
permutari.cpp:60:5: error: ‘cin’ was not declared in this scope
   60 |     cin >> n;
      |     ^~~
permutari.cpp:60:5: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?

Cum funcționează evaluarea?