@article{adaptivegenerationofprogrammingpuzzles,
  title = {ADAPTIVE GENERATION OF PROGRAMMING PUZZLES},
  author = {Ashwin Kalyan and Oleksandr Polozov and Adam Tauman Kalai},
  year = {2019},
  url = {https://openreview.net/forum?id=HJeRveHKDH},
}