Cod sursa(job #1108994)
Utilizator | Data | 16 februarie 2014 16:50:01 | |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.58 kb |
#include<stdio.h>
using namespace std;
int main()
{
int p,q,n,nr,i,x,y,k;
bool ok,ok1;
freopen("fractii.in","r",stdin);
freopen("fractii.out","w",stdout);
scanf("%d",&n);
nr=2*n-1;q=2;
for(p=2;p<=n;p++)
{
for(q=2;q<=n;q++)
{
if(p!=q)
{
x=p;y=q;
while(x!=y)
if(x>y)
x=x-y;
else
y=y-x;
if(x==1)
nr++;
}
}
}
printf("%d",nr);
return 0;
}