Rezumat problemă

Eratostene2

#3313

Se dau n numere naturale. Aflaţi pentru fiecare număr câţi factori primi are în descompunere.

NeuroN

Fișiere Bunget Mihai (mihaibun) Mihai Bunget medie

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

Rezolvă

Detalii

Problema	Eratostene2	Operații I/O	eratostene2.in/eratostene2.out
Limita timp	0.2 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#62679319	Utilizator	Țugui Amalia-Ioana (Amalia_T)
Fișier	eratostene2.cpp	Dimensiune	390 B
Data încărcării	29 Ianuarie 2026, 12:40	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

eratostene2.cpp:2:20: error: found ':' in nested-name-specifier, expected '::'
 using namespace std:

                    ^
eratostene2.cpp:3:1: error: 'ifstream' is not a namespace-name
 ifstream fin("eratostene2.in")

 ^
eratostene2.cpp:3:10: error: expected namespace-name before 'fin'
 ifstream fin("eratostene2.in")

          ^
eratostene2.cpp:3:10: error: expected ';' before 'fin'
eratostene2.cpp:3:13: error: expected constructor, destructor, or type conversion before '(' token
 ifstream fin("eratostene2.in")

             ^
eratostene2.cpp: In function 'int main()':
eratostene2.cpp:8:13: error: 'i' was not declared in this scope
        for (i=2; i<1000; i++)

             ^
eratostene2.cpp:9:15: error: 'v' was not declared in this scope
            if(v[i]==0); 

               ^
eratostene2.cpp:10:12: error: 'j' was not declared in this scope
        for(j=2*i; j<=1000000; j+=1) v[j]++;

            ^
eratostene2.cpp:10:16: error: 'i' was not declared in this scope
        for(j=2*i; j<=1000000; j+=1) v[j]++;

                ^
eratostene2.cpp:10:37: error: 'v' was not declared in this scope
        for(j=2*i; j<=1000000; j+=1) v[j]++;

                                     ^
eratostene2.cpp:11:12: error: 'fin' was not declared in this scope
            fin>>n;

            ^
eratostene2.cpp:11:17: error: 'n' was not declared in this scope
            fin>>n;

                 ^
eratostene2.cpp:12:12: error: 'i' was not declared in this scope
        for(i=1; i<=n; i++)

            ^
eratostene2.cpp:14:17: error: 'x' was not declared in this scope
            fin>>x;

                 ^
eratostene2.cpp:15:12: error: 'fout' was not declared in this scope
            fout<<v[x]<<" ";

            ^
eratostene2.cpp:15:18: error: 'v' was not declared in this scope
            fout<<v[x]<<" ";

                  ^

Cum funcționează evaluarea?