WA test#1
but it works normally on my computer
actually i don't understand what is the matter of it?
give me some more tests:
HERE my program:



#include <iostream>
using namespace std;
 int a[30],contr=0,n,s=0;
int main()
{
     int i;
    cin>>n;
    for(i=0;i<100;i++)
        a[i]=0;
int f(int x);
    bool pr=true;
    while(n>=10)
    {
        f(n);
        contr++;
        if(contr!=s)
        {
            cout<<-1<<endl;
            n=5;
            pr=false;
        }
    }
    if(n==0)
    {
        cout<<"10"<<endl;
        pr=false;
    }
    if(pr)
    {
        a[s]=n;
        for(i=s;i>=0;i--)
            cout<<a[i];
        cout<<endl;
    }
    return 0;
}
int f( int k)
{
    int i;
    for(i=9;i>1;i--)
        if(k%i==0)
        {
            n/=i;
            a[s++]=i;
            break;
        }
    return n;
}

Check your program once again.It is giving wrong answer to sample input.It is outputing 10 for sample input