Cod sursa(job #69536)

Utilizator gabitzish1Gabriel Bitis gabitzish1 Data 3 iulie 2007 14:48:09
Problema Sum Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.93 kb
#include<stdio.h>
#include<fstream.h>
#include<math.h>

typedef struct
{
  long long x, e;
}  factor;

factor v[10];

long long n, contor, nr, x;

void descomp(long  longx)
{
  long long exp, d;
  d=2;
  nr=0;
  while (x!=1)
   {
     exp=0;
     if (x%d==0)
       {
	 nr++;
	 while (x%d==0)
	  {
	    exp++;
	    x/=d;
	  }
	 v[nr].e=exp;
	 v[nr].x=d;
       }
     d++;
   }
}

long totient(long long x)
{
  long long i, c=1;
  for (i=1; i<=nr; i++)
    c*=((v[i].x-1)*pow(v[i].x,v[i].e-1));
  return c;
}






void prelucrare2()
{
   long long  i, j, s1;
   freopen("sum.in","r",stdin);
   freopen("sum.out","w",stdout);
   scanf ("%lld",&n);
   for (i=1; i<=n; i++)
     {
       scanf("%lld",&x);
       descomp(x);
       long long a=totient(x);
       s1=(x*a)/2;

      s1*=2;
      printf("%lld\n",s1*2);
     }
}




int main()
{
  prelucrare2();
  return 0;
}