Sphenic Number

PROBLEM :
A Sphenic Number is a positive integer N which is product of exactly three distinct primes. The first few sphenic numbers are 30, 42, 66, 70, 78, 102, 105, 110, 114, …
Given a number N, your task is to find whether it is a Sphenic Number or not.

Examples:

Input : 30
Output : 1
Explanation : 30 is the smallest Sphenic number,
           30 = 2 × 3 × 5
           the product of the smallest three primes

Input : 60
Output : 0
Explanation : 60 = 22 x 3 x 5
              has exactly 3 prime factors but
              is not a sphenic number

Input:
The first line of input contains an integer T denoting the no of test cases. Then T test cases follow. Each line contains an integer N.

Output:
For each test case in a new line print 1 if N is a Sphenic Number else print 0.

Constraints:
1<=T<=100
1<=N<=1000

Example:
Input:
2
30
60

Output:
1
0

--------------------------------------------------------------------------------
SIMPLE c++ IMPLEMENTATION :
--------------------------------------------------------------------------------

#include<iostream>
using namespace std;
int Prime_Factors_Powers(int ) ;
int main()
{
    int t,no ;
    cin>>t ;
    while(t--)
    {
        cin>>no ;
        cout<<Prime_Factors_Powers(no) ;
        cout<<endl ;
    }
return 0;
}

int Prime_Factors_Powers(int no)
{
    int i,j,arr[no+1],ans ;
    arr[0]=0 ;
    arr[1]=1 ;
    ans=0 ;
   
    for(i=0;i<=no;i++)
        arr[i]=1 ;
       
    for(i=2;i<=no;i++)
    {
        for(j=i+1;j<=no;j++)
            if(j%i==0)
                arr[j]=0 ;
    }  
   
    for(i=2;i<=no;i++)
    {
        if(arr[i]==1)
        {
            if(no%arr[i]==0)
            {
                no=no/i ;
                ans++ ;
            }
        }
        if(no==1)
            break ;
    }
   
    if(ans==3)
        return 1 ;
    return 0 ;
}

---------------------------------------------------------------------------------

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