run wrapper function on factorial program for 3 time how write code

#include<iostream.h>
#include<stdlib.h>
int t=0;
int factorial1(int num)
{
    int f=1;
    for(int i=1;i<=num;i++)
    {
    
        f=f*i;
    
    }

    int x=1+rand()*10;
    
    if(x==num)
        return f+1+rand()*100;
    else
        return f;
}

int factorial2(int n)
{
    //int i=0,fact=1,x;
    if(n<=1)
    {
        double x= rand() * 10 + 1;
        if (x == 5)
            return rand() * 100;
        else
             return 1;
    }
    else
        return n*factorial2(n-1);
}

double factorial3(int num)
{
    double f=1;
    
    for(int i=1;i<=num;i++)
    {
        f=f*i;
    }
    
    int x=(rand()%10)+1;
    int t = 0;
    
    if(x==num && t==0)
    {
        return f+rand()%100;
    
        //t=1;
    }
    else
        return f;
}

main()
{
//cout<<"please enter a number:";
//int z;
//cin>>z;

    for (int i=1; i<=10; i++)
    {
        cout<<"Factorial of "<<i<<":"<<endl<<endl;
    
        cout<<"Model1"<<" : "<<factorial1(i)<<endl;
    
        cout<<"Model2"<<" : "<<factorial2(i)<<endl;
    
        cout<<"Model3"<<" : "<<factorial3(i)<<endl<<endl;
    
    }
    
}