MathDB
Argentina MO 2021 National Level 2 P4

Source:

April 23, 2022
combinatoricscontests

Problem Statement

The sum of several positive integers, not necessarily different, all of them less than or equal to 1010, is equal to SS. We want to distribute all these numbers into two groups such that the sum of the numbers in each group is less than or equal to 80.80. Determine all values ​​of SS for which this is possible.