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	#64146111	Utilizator	stef roxana (Stef_Roxana)
Fișier	permutari.cpp	Dimensiune	586 B
Data încărcării	20 Aprilie 2026, 12:44	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp:2:1: error: ‘istream’ does not name a type
    2 | istream cin("permutari.in");
      | ^~~~~~~
permutari.cpp:3:1: error: ‘ofstream’ does not name a type
    3 | ofstream cout("permutari.in");
      | ^~~~~~~~
permutari.cpp: In function ‘void afisare()’:
permutari.cpp:11:9: error: ‘cout’ was not declared in this scope
   11 |         cout<<s[i]<<" ";
      |         ^~~~
permutari.cpp:2:1: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
    1 | #include <fstream>
  +++ |+#include <iostream>
    2 | istream cin("permutari.in");
permutari.cpp:12:5: error: ‘cout’ was not declared in this scope
   12 |     cout<<endl;
      |     ^~~~
permutari.cpp:12:5: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
permutari.cpp: In function ‘int main()’:
permutari.cpp:38:4: error: ‘cin’ was not declared in this scope
   38 |    cin>>n;
      |    ^~~
permutari.cpp:38:4: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?

Cum funcționează evaluarea?