Cod sursa(job #2228562)
Utilizator | Data | 4 august 2018 11:12:03 | |
---|---|---|---|
Problema | Ciurul lui Eratosthenes | Scor | 20 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.22 kb |
#import<fstream>
int n,i=1,j,r; char p['썐'];
main()
{
for(std::ifstream("ciur.in")>>n;n/++i;std::ofstream("ciur.out")<<r)
if(!p[i])
for(++r, j = i + i; j <= n; j += i) p[j] = 1;
}