This is the list of challenge winners :
Ryan Lo ( 7th grade, Kingsview Middle School, Montgomery, MD), challenge of 07/03/2020 and 7/24/2020 quickest problem solver.
Claire Chen (10th Grade, Richard Montgomery High School, Montgomery, MD), challenge of 07/03/2020, most efficient coder.
Ivan Zhang (7th Grade, Cabin John Middle School, Montgomery, MD), challenge of 6/19/2020, quickest problem solver.