User contributions
- 22:46, 8 February 2018 (diff | hist) . . (+45) . . 2018 AMC 10A Problems/Problem 12 (→Solution 2)
- 11:15, 30 January 2018 (diff | hist) . . (-12) . . 2017 USAJMO Problems/Problem 2 (→Solution 1 (and motivation))
- 11:36, 9 January 2018 (diff | hist) . . (+5) . . 2007 AMC 10A Problems/Problem 20
