population.c

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

int main(void)
{
    int start_size;
    int end_size;
    int years_passed;
    // TODO: Prompt for start size
    do
    {
        start_size = get_int("the starting population size is: ");
    }
    while (start_size < 9);
    //return start_size;

    // TODO: Prompt for end size
    do
    {
        end_size = get_int("the ending population size is: ");
    }
    while (end_size < start_size);
    //return end_size;
    // TODO: Calculate number of years until we reach threshold
    int previous_size;
    int actual_size = start_size;
    int final_size;
    years_passed = 0;
    for(previous_size = start_size; actual_size < end_size; previous_size = previous_size + (previous_size / 3) - (previous_size / 4 ))
    {
        actual_size = previous_size + (previous_size / 3) - (previous_size / 4 );
        years_passed += 1;
    }
    printf("years passed = %i\n", years_passed);
    // TODO: Print number of years
}