Cod sursa(job #2333687)
| Utilizator |  Mirt Leonard Leonard123 |
Data | 1 februarie 2019 19:47:47 |
|---|---|---|---|
| Problema | Ciurul lui Eratosthenes | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 0.2 kb |
#include<fstream>
using namespace std;ifstream f("ciur.in");ofstream o("ciur.out");int n,i,j,s;char p['썐'];int main(){f>>n;for(i=2; i<=n; i++)if(!p[i]){s++;for(j=i+i; j<=n; j+=i) p[j]=1;}o<<s<<'\n';}
