Community Profile


Jin Yang

University of Wisconsin-Madison

Last seen: 2 days ago Active since 2020

Postdoc at the University of Wisconsin-Madison; PhD, Caltech, 2019; BEn, Tsinghua University, 2013.


  • Treasure Hunt Participant
  • Explorer
  • 5-Star Galaxy Level 5
  • Solver
  • Personal Best Downloads Level 4
  • GitHub Submissions Level 3
  • First Review
  • First Submission

View badges

Content Feed

View by


Prime factor digits
Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...

11 months ago


Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

11 months ago


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

11 months ago