Editorial English Editorial

Overall Editorial


A - Depth of Interval


B - Increasing Swaps


C - Sum of Three Inversions


D - Grid Path Tree


E - Max Twice Subsequences


F - Decimal Pyramid


G - Don't make zero


H - Akari Counting


I - Subgrid Connected Components


J - Divide Polygon


K - Two-Way Communication


L - Colorful Quadrilateral


M - Many Approaches