Cod sursa(job #3151315)
Utilizator | Data | 20 septembrie 2023 17:27:03 | |
---|---|---|---|
Problema | Ciurul lui Eratosthenes | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.25 kb |
#include <bits/stdc++.h>
using namespace std;
int n,nr,v[2000005];
int main()
{cin>>n;
for(int i=2;i<=n;i++)
if(v[i]==0)
{for(int j=i;j<=n;j+=i)
v[j]=1;
nr++;
}
cout<<nr;
return 0;
}