olymmath

UA-UMO 2021 Problem 118

    There are 101101 not necessarily different weights, each of which weighs an integer number of grams from 11 g to 20202020 g. It is known that at any division of these weights into two heaps, the total weight of at least one of the piles is no more than 20202020 . What is the largest number of grams can weigh all 101101 weights?

    (Bogdan Rublev)

    Dataset text AI-MO AoPS. Quoted with source.

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