C :: Fclose Seems To Be Not Working

I'm trying to write a code that will

1) Generate a series of numbers
2) Write those numbers onto a txt file and
3) Read only the odd numbers out of the txt file.

I have 3 functions besides main that do each of the objectives individually and when separate they work just fine. But when I put them together for some reason the third function is never started. Also when I rearrange the 3rd function infront of the 2nd (since i have the txt file already saved) it works but I get an error when trying to close the txt file. It is the same close function that I'm using when first creating the txt file as well.

Here is the code

Code:

#include <stdio.h>
#include <stdlib.h>
int main()
}

[code]....