pat甲1096 Consecutive Factors

#include<iostream>
#include<algorithm>
#include<cstring>
#include<cmath>
using namespace std;
int main(){
    int n,i,j,t,length,maxlength=0,firsti;
    cin>>n;
    t=n;
    int sqr=sqrt(n);
    for(i=2;i<=sqr;i++)
    {
        n=t;
        length=0;
        if(n%i==0)
        {
            n=n/i;
            j=i+1;
            length=length+1;
            while(n%j==0)
            {
                n=n/j;
                length=length+1;
                j=j+1;
            }
            if(length>maxlength)
            {
                firsti=i;
                maxlength=length;
            }
        }

    }
    if(maxlength==0)
    {
        cout<<1<<endl;
        cout<<t;
        return 0;
    }
     cout<<maxlength<<endl;
    for(i=0;i<maxlength;i++)
    {
       cout<<firsti;
       if(i<maxlength-1)
       {
           cout<<"*";
       }
       firsti=firsti+1;
    }
    return 0;

}