Rezumat problemă

Cerc

#318

Se dau n numere naturale. Determinaţi o aranjare a acestor numere pe un cerc, astfel încât suma produselor de câte două numere vecine să fie maximă.

Fișiere Candale Silviu (silviu) medie

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	Cerc	Operații I/O	cerc.in/cerc.out
Limita timp	0.2 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64499073	Utilizator	Ardelean Cezara (cezaraaardelean)
Fișier	cerc.cpp	Dimensiune	1.30 KB
Data încărcării	11 Mai 2026, 12:48	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

cerc.cpp:4:6: error: expected ‘,’ or ‘;’ before ‘ofstream’
    4 |      ofstream cout("cerc.out")
      |      ^~~~~~~~
cerc.cpp: In function ‘void afisare()’:
cerc.cpp:11:16: error: ‘v’ was not declared in this scope
   11 |     int suma = v[s[1]]*v[s[n]];
      |                ^
cerc.cpp:11:18: error: ‘s’ was not declared in this scope
   11 |     int suma = v[s[1]]*v[s[n]];
      |                  ^
cerc.cpp:11:28: error: ‘n’ was not declared in this scope
   11 |     int suma = v[s[1]]*v[s[n]];
      |                            ^
cerc.cpp:17:9: error: ‘cout’ was not declared in this scope
   17 |         cout<<v[s[i]]<<" ";
      |         ^~~~
cerc.cpp:2:1: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
    1 | #include<fstream>
  +++ |+#include <iostream>
    2 | using namespace std;
cerc.cpp:23:5: error: ‘cout’ was not declared in this scope
   23 |     cout<<v[s[n]]<<" suma: ";
      |     ^~~~
cerc.cpp:23:5: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
cerc.cpp:26:8: error: ‘sum’ was not declared in this scope; did you mean ‘suma’?
   26 |     if(sum>summax)
      |        ^~~
      |        suma
cerc.cpp:26:12: error: ‘summax’ was not declared in this scope; did you mean ‘suma’?
   26 |     if(sum>summax)
      |            ^~~~~~
      |            suma
cerc.cpp:31:13: error: ‘sol’ was not declared in this scope
   31 |             sol[i]=v[s[i]];
      |             ^~~
cerc.cpp: In function ‘void back(int)’:
cerc.cpp:41:11: error: ‘n’ was not declared in this scope
   41 |     if(k==n+1)
      |           ^
cerc.cpp:53:13: error: ‘s’ was not declared in this scope
   53 |             s[k] = i;
      |             ^
cerc.cpp:55:16: error: ‘f’ was not declared in this scope
   55 |             if(f[i]==0)
      |                ^
cerc.cpp: In function ‘int main()’:
cerc.cpp:77:10: error: ‘n’ was not declared in this scope
   77 |     cin>>n;
      |          ^
cerc.cpp:83:14: error: ‘v’ was not declared in this scope
   83 |         cin>>v[i];
      |              ^
cerc.cpp:93:16: error: ‘v’ was not declared in this scope
   93 |             if(v[i]>v[j])
      |                ^
cerc.cpp:105:5: error: ‘s’ was not declared in this scope
  105 |     s[1]=1;
      |     ^
cerc.cpp:107:5: error: ‘f’ was not declared in this scope
  107 |     f[1]=1;
      |     ^
cerc.cpp:111:9: error: ‘cout’ was not declared in this scope
  111 |         cout<<sol[i]<<" ";
      |         ^~~~
cerc.cpp:111:9: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
cerc.cpp:111:15: error: ‘sol’ was not declared in this scope
  111 |         cout<<sol[i]<<" ";
      |               ^~~

Cum funcționează evaluarea?