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3

Part of 2017 Moldova EGMO TST

Problems(1)

Egmo moldova tst 2017 easy combinatorics

Source: Moldova TST for EGMO 2017, prob. 3

4/26/2017
Let us have 60506050 points in the plane, no three collinear. Find the maximum number kk of non-overlapping triangles without common vertices in this plane.
combinatorics