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	#64424334	Utilizator	Nicoara Mihai (mihai_nicoara)
Fișier	permutari.cpp	Dimensiune	1.26 KB
Data încărcării	06 Mai 2026, 10:48	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

permutari.cpp: In function ‘void back(int)’:
permutari.cpp:30:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   30 |         if(ok(k))
      |           ^
permutari.cpp: At global scope:
permutari.cpp:48:10: error: redefinition of ‘std::ifstream fin’
   48 | ifstream fin("permutari.in");
      |          ^~~
permutari.cpp:5:10: note: ‘std::ifstream fin’ previously declared here
    5 | ifstream fin("permutari.in");
      |          ^~~
permutari.cpp:49:10: error: redefinition of ‘std::ofstream fout’
   49 | ofstream fout("permutari.out");
      |          ^~~~
permutari.cpp:6:10: note: ‘std::ofstream fout’ previously declared here
    6 | ofstream fout("permutari.out");
      |          ^~~~
permutari.cpp:50:5: error: redefinition of ‘int x [101]’
   50 | int x[101],n,a,b;
      |     ^
permutari.cpp:7:5: note: ‘int x [101]’ previously declared here
    7 | int x[101],n;
      |     ^
permutari.cpp:50:12: error: redefinition of ‘int n’
   50 | int x[101],n,a,b;
      |            ^
permutari.cpp:7:12: note: ‘int n’ previously declared here
    7 | int x[101],n;
      |            ^
permutari.cpp:51:6: error: redefinition of ‘void afis()’
   51 | void afis()
      |      ^~~~
permutari.cpp:8:6: note: ‘void afis()’ previously defined here
    8 | void afis()
      |      ^~~~
permutari.cpp:57:5: error: redefinition of ‘int ok(int)’
   57 | int ok(int k)
      |     ^~
permutari.cpp:14:5: note: ‘int ok(int)’ previously defined here
   14 | int ok(int k)
      |     ^~
permutari.cpp:64:5: error: redefinition of ‘int sol(int)’
   64 | int sol(int k)
      |     ^~~
permutari.cpp:21:5: note: ‘int sol(int)’ previously defined here
   21 | int sol(int k)
      |     ^~~
permutari.cpp:68:6: error: redefinition of ‘void back(int)’
   68 | void back(int k)
      |      ^~~~
permutari.cpp:25:6: note: ‘void back(int)’ previously defined here
   25 | void back(int k)
      |      ^~~~
permutari.cpp: In function ‘void back(int)’:
permutari.cpp:73:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   73 |         if(ok(k))
      |           ^
permutari.cpp: At global scope:
permutari.cpp:80:5: error: redefinition of ‘int main()’
   80 | int main()
      |     ^~~~
permutari.cpp:37:5: note: ‘int main()’ previously defined here
   37 | int main()
      |     ^~~~

Cum funcționează evaluarea?