Art of Problem Solving

2012 USAMO Problems/Problem 5: Revision history

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25 July 2025

5 July 2025

26 April 2025

2 May 2023

  • curprev 21:3221:32, 2 May 2023 Knowingant talk contribs 4,660 bytes −3,198 deleting my solution: i found the points a', b', and c' i claimed the coordinates of in the solution are not actually collinear. i messed up some algebra somewhere and i'm not going through this thing again.

26 April 2023

13 March 2023

18 June 2020

3 July 2013

17 September 2012

21 June 2012

5 May 2012

26 April 2012

25 April 2012