User contributions
- 22:00, 6 November 2022 (diff | hist) . . (-95) . . m 2011 UNCO Math Contest II Problems/Problem 9 (I made an error.) (current)
- 21:57, 6 November 2022 (diff | hist) . . (+95) . . m 2011 UNCO Math Contest II Problems/Problem 9 (→Solution)