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	#60764967	Utilizator	Neagu Cosmin (_mihai100)
Fișier	permutari.cpp	Dimensiune	464 B
Data încărcării	11 Noiembrie 2025, 09:40	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp:1:1: error: 'ifstream' does not name a type
 ifstream fin ("permutari.in"); ofstream fout ("permutari.out");

 ^
permutari.cpp:1:32: error: 'ofstream' does not name a type
 ifstream fin ("permutari.in"); ofstream fout ("permutari.out");

                                ^
permutari.cpp: In function 'void afisare(int)':
permutari.cpp:5:12: error: 'l' was not declared in this scope
 for (int i=l;i<=k; it+) 

            ^
permutari.cpp:5:20: error: 'it' was not declared in this scope
 for (int i=l;i<=k; it+) 

                    ^
permutari.cpp:5:23: error: expected primary-expression before ')' token
 for (int i=l;i<=k; it+) 

                       ^
permutari.cpp:6:5: error: 'cout' was not declared in this scope
     cout<<st[i]<<" "; 

     ^
permutari.cpp:7:1: error: 'cout' was not declared in this scope
 cout<<endl;} 

 ^
permutari.cpp:7:7: error: 'endl' was not declared in this scope
 cout<<endl;} 

       ^
permutari.cpp: In function 'int valid(int)':
permutari.cpp:9:12: error: expected ';' before '-' token
 {for (int i-l:i<k;i++) 

            ^
permutari.cpp:9:14: error: found ':' in nested-name-specifier, expected '::'
 {for (int i-l:i<k;i++) 

              ^
permutari.cpp:9:13: error: 'l' has not been declared
 {for (int i-l:i<k;i++) 

             ^
permutari.cpp:10:8: error: 'kl' was not declared in this scope
 if (st[kl--st[i]) return o;

        ^
permutari.cpp:10:12: error: expected ']' before 'st'
 if (st[kl--st[i]) return o;

            ^
permutari.cpp:10:12: error: expected ')' before 'st'
permutari.cpp:10:26: error: 'o' was not declared in this scope
 if (st[kl--st[i]) return o;

                          ^
permutari.cpp: In function 'void back(int)':
permutari.cpp:14:16: error: 'l' was not declared in this scope
     for (int i=l;i<=n;i++) 

                ^
permutari.cpp:16:8: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
     if (valid(k)) 

        ^
permutari.cpp:20:1: error: a function-definition is not allowed here before '{' token
 {

 ^
permutari.cpp:24:2: error: expected '}' at end of input
  }
  ^

Cum funcționează evaluarea?