NOTE: This coupon generator may no longer work. It’s been ages since I’ve actually been to a Burger King.
On the back of every Burger King receipt is a blank line, and a phone number for a survey. Once you call the number and complete the survey the representative will then give you a coupon code which you could then write on the line. Upon bringing the receipt back to Burger King they would reward you with a free sandwich or fries or whatever the free food was. Like I said I don’t really remember anymore. I’m not even sure if the survey is still there and if it is if it’s for the same reward and using the same algorithm. Basically the algorithm was simply two letters followed by six random numbers. The two letters however were determined by whatever month it was that the survey was taken in. The program simply, runs and auto detects the month. It then just generates 6 random numbers for that months code. Simple and effective and I remember at the time of development it worked beautifully.
Anyway since I’m sharing all my old code and programs I figured this would be a fine one to share as well.