In one of my Math/Computer classes in college, part of the class was that along the way you were supposed to be implementing the mathematical concepts in code a

In one of my Math/Computer classes in college, part of the class was that along the way you were supposed to be implementing the mathematical concepts in code along the way, so that you would have your code available to run on the test questions when it reached the day of the test! Whether you programmed on a TI-89 calculator or your laptop was up to the student, but the tests were open note and open device and it felt very freeing. The actual methods of input and exact algorithms were of course carefully picked so that there would be no easy off the shelf code solution, but once you understood it the problems could be trivially implemented in any programming language with a BigInt type