Rezumat problemă

SecvK

#134

Se dă un șir cu n numere naturale și un număr k. Să se determine o secvență de elemente de lungime k cu suma elementelor maximă.

Fișiere Candale Silviu (silviu) dificilă

Clasa 9 Tablouri unidimensionale (vectori) Probleme cu secvențe Sume parțiale

Rezolvă

Detalii

Problema	SecvK	Operații I/O	secvk.in/secvk.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64289490	Utilizator	Ungureanu Ruxandra (ruxandramaria11)
Fișier	secvk.cpp	Dimensiune	353 B
Data încărcării	28 Aprilie 2026, 10:31	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

secvk.cpp:3:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type
    3 | ifstream cin("secvk.in");
      |             ^
secvk.cpp:4:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type
    4 | ofstream cout("secvk.out");
      |              ^
secvk.cpp:5:23: error: expected initializer before ‘s’
    5 | int n,i,k,mx,v[100001]s[100001],st,dr;
      |                       ^
secvk.cpp: In function ‘int main()’:
secvk.cpp:8:1: error: reference to ‘cin’ is ambiguous
    8 | cin>>n>>k;
      | ^~~
In file included from secvk.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
secvk.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("secvk.in");
      |          ^~~
secvk.cpp:11:1: error: reference to ‘cin’ is ambiguous
   11 | cin>>v[i];
      | ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
secvk.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("secvk.in");
      |          ^~~
secvk.cpp:11:6: error: ‘v’ was not declared in this scope
   11 | cin>>v[i];
      |      ^
secvk.cpp:12:1: error: ‘s’ was not declared in this scope
   12 | s[i]=s[i+1]+v[i];
      | ^
secvk.cpp:15:4: error: ‘s’ was not declared in this scope
   15 | if(s[i]-s[i-k]>mx)
      |    ^
secvk.cpp:18:1: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   18 | st=i-k;
      | ^~
      | std
secvk.cpp:19:1: error: ‘dr’ was not declared in this scope
   19 | dr=i;
      | ^~
secvk.cpp:21:7: error: ‘st’ was not declared in this scope; did you mean ‘std’?
   21 | for(i=st;i<=dr;i++)
      |       ^~
      |       std
secvk.cpp:21:13: error: ‘dr’ was not declared in this scope
   21 | for(i=st;i<=dr;i++)
      |             ^~
secvk.cpp:22:1: error: reference to ‘cout’ is ambiguous
   22 | cout<<v[i]<<" ";
      | ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
secvk.cpp:4:10: note:                 ‘<typeprefixerror>cout’
    4 | ofstream cout("secvk.out");
      |          ^~~~
secvk.cpp:22:7: error: ‘v’ was not declared in this scope
   22 | cout<<v[i]<<" ";
      |       ^

Cum funcționează evaluarea?