Rezumat problemă

Permutari2

#125

Se citeşte un număr natural nenul n, apoi n numere naturale distincte. Să se afişeze, în ordine lexicografică, permutările mulţimii formate din cele n numere citite.

Fișiere Candale Silviu (silviu) medie

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	Permutari2	Operații I/O	permutari2.in/permutari2.out
Limita timp	0.5 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63422390	Utilizator	Anastasia Bercea (anastasia35261)
Fișier	permutari2.cpp	Dimensiune	854 B
Data încărcării	03 Martie 2026, 08:10	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari2.cpp:5:1: error: expected ',' or ';' before 'ofstream'
 ofstream fout("permutari2.out")

 ^
permutari2.cpp: In function 'int valid(int)':
permutari2.cpp:11:12: error: 'x' was not declared in this scope
         if(x[i]==x[k])

            ^
permutari2.cpp: In function 'int solutie(int)':
permutari2.cpp:17:11: error: 'n' was not declared in this scope
     if(k==n)

           ^
permutari2.cpp: In function 'void tipar(int)':
permutari2.cpp:25:9: error: 'fout' was not declared in this scope
         fout<<v[x[i]]<<" ";

         ^
permutari2.cpp:25:15: error: 'v' was not declared in this scope
         fout<<v[x[i]]<<" ";

               ^
permutari2.cpp:25:17: error: 'x' was not declared in this scope
         fout<<v[x[i]]<<" ";

                 ^
permutari2.cpp:26:5: error: 'fout' was not declared in this scope
     fout<<endl;

     ^
permutari2.cpp: In function 'void back(int)':
permutari2.cpp:31:16: error: 'n' was not declared in this scope
     for(i=1;i<=n;i++)

                ^
permutari2.cpp:33:9: error: 'x' was not declared in this scope
         x[k]=i;

         ^
permutari2.cpp:34:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
         if(valid(k)==1)

           ^
permutari2.cpp: In function 'int main()':
permutari2.cpp:42:10: error: 'n' was not declared in this scope
     fin>>n;

          ^
permutari2.cpp:44:9: error: 'i' was not declared in this scope
     for(i=1;i<=n;i++)

         ^
permutari2.cpp:45:14: error: 'v' was not declared in this scope
         fin>>v[i];

              ^
permutari2.cpp:46:9: error: 'i' was not declared in this scope
     for(i=1;i<=n-1;i++)

         ^
permutari2.cpp:47:13: error: 'j' was not declared in this scope
         for(j=i+1;j<=n;j++)

             ^
permutari2.cpp:48:20: error: 'v' was not declared in this scope
               swap(v[i],v[j]);

                    ^
permutari2.cpp: In function 'int solutie(int)':
permutari2.cpp:20:1: warning: control reaches end of non-void function [-Wreturn-type]
 }

 ^

Cum funcționează evaluarea?