Cod sursa(job #1529563)
Utilizator | Data | 21 noiembrie 2015 01:24:48 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<cstdio>
int divizori(int n)
{
int i;
int counter =0;
for(i=2;i<=n/2;++i)
if(!n%i)
counter++;
return counter;
}
int main()
{
freopen("fractii.in","r",stdin);
freopen("fractii.out","w",stdout);
int n;
scanf("%d",&n);
int i;
int counter=n;
for(i=2;i<=n;++i)
{
counter += i-divizori(i);
}
printf("%d",--counter);
}