Art of Problem Solving

2002 IMO Problems/Problem 1: Revision history

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10 June 2015

  • curprev 07:0007:00, 10 June 2015 Mattx1732 talk contribs 618 bytes +618 Created page with "<math>S</math> is the set of all <math>(h,k)</math> with <math>h,k</math> non-negative integers such that <math>h + k < n</math>. Each element of <math>S</math> is colored red..."