Thread: text file

can anyone tell me why there is 18 numbers in the text file instead of 10. thanks

Code:

#include <fstream>
#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;


void rand_seed()
{
int seed = static_cast<int>(time(0));
srand(seed);
}


int rand_int(int a, int b)
{
	return a + rand() % (b - a + 1);
}

	

int main()
{
	int response;
	
	              do
		
                               {				
		cout<<"Enter 1 for a list 2 to exit.";	
		cin>>response;							
   		if (response == 1)
		
                                 {
			
		          rand_seed();
	                         ofstream fout;
	                         fout.open("data.dat", ios::out);
	

		int arr [10];
		rand_seed();
		int i;					
		for (i = 1; i <= 9; i++)
		
		{		
			int d1 = rand_int(1, 99);
			arr[i] = d1;
			fout<<arr[i];
		}
	
		fout.close();
				
		}
		else
		cout<<"Thank you!!!";				
                                while (response == 1);
		
 return 0;
}