chap2.1

#include <cs50.h>
#include <stdio.h>

int result;

int get_positive_int(string prompt)
{    
    do
    {
        result = get_int("%s", prompt);
    }
    while (result <= 0);
    return result;
}

int main(void)
{
    int n = get_positive_int("Enter a positive number: ");
    
    // print the output from our function
    printf("My positive int is %i.\n", n);
}