Rezumat problemă

Eratostene

#303

Se dau n numere naturale mai mici decât 1.000.000. Determinaţi câte dintre ele sunt prime.

Fișiere Candale Silviu (silviu) medie

Clasa 9 Tablouri unidimensionale (vectori) Vectori caracteristici / de frecventa Ciurul lui Eratostene

Rezolvă

Detalii

Problema	Eratostene	Operații I/O	eratostene.in/eratostene.out
Limita timp	0.5 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#62090993	Utilizator	cernatescu irina (elenairinacernatescu)
Fișier	eratostene.cpp	Dimensiune	277 B
Data încărcării	08 Ianuarie 2026, 12:23	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

eratostene.cpp:5:1: error: expected initializer before 'int'
 int i, n, j;

 ^
eratostene.cpp: In function 'int main()':
eratostene.cpp:8:3: error: 'fin' was not declared in this scope
   fin>>n;

   ^
eratostene.cpp:8:8: error: 'n' was not declared in this scope
   fin>>n;

        ^
eratostene.cpp:9:3: error: 'v' was not declared in this scope
   v[0]= v[1]= 1;

   ^
eratostene.cpp:10:7: error: 'i' was not declared in this scope
   for(i=2; i*i<=n ; i++);

       ^
eratostene.cpp:11:10: error: 'i' was not declared in this scope
     if(v[i]==0)

          ^
eratostene.cpp:12:7: error: 'j' was not declared in this scope
   for(j=i*i;j<=n; j+=i);

       ^
eratostene.cpp:13:9: error: 'j' was not declared in this scope
       v[j]=1

         ^
eratostene.cpp:14:3: error: expected ';' before 'for'
   for(i=2 ; i<=n; i++);

   ^
eratostene.cpp:14:13: error: 'i' was not declared in this scope
   for(i=2 ; i<=n; i++);

             ^
eratostene.cpp:14:22: error: expected ';' before ')' token
   for(i=2 ; i<=n; i++);

                      ^
eratostene.cpp:15:15: error: 'fout' was not declared in this scope
   if(v[i]==0) fout<<i<<" ";

               ^

Cum funcționează evaluarea?