There's a showoff at the end of every semester for the students in the class to show off their final projects. It's amazing to see people who, before coming to CMU, had never programmer in their life, program things like A.I. assistants, fully-featured games, and incredible vision-based tools. Probably one of the most (in)famous CS course at CMU depending on who you ask.
Functionality is a better measure of productivity than lines of code. The functionality is impressive. The code appears to be written in a Java style, which increases the line count versus a more Pythonic style.
This guy wrote a 7,900 line Python tool for his intro CS class. Call me impressed.