Resources
Over the years of my training, I have found the following resources helpful:
- Putnam and Beyond - Titu Andreescu
- Olympiad training handouts - Yufei Zhao
- Preparation material - IMOmath.com
- Resource page - Geoff Smith
Here are the past contests for related competitions:
Finally, here are the Putnam courses for some strong universities:
Feel free to email me at ctj@math.cmu.edu for suggestions!