Cod sursa(job #265454)

Utilizator rob3rtinho93Bindar Robert rob3rtinho93 Data 23 februarie 2009 22:09:31
Problema Ciurul lui Eratosthenes Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.28 kb
Raporteaza aceasta sursa 
#include<fstream.h>
long long unsigned n,i,j,nr=0,sw;
int main(){ifstream f("ciur.in");
	   ofstream g("ciur.out");
	   f>>n;
	   for(i=2;i<=n;i++){sw=0;
			     for(j=2;j<=i/2;j++) if(i%j==0) sw=1;
			     if(sw==0) nr++;}
	   g<<nr;
	    return 0;
                             }