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Solution: Most Stones Removed with Same Row or Column

Understand how to solve the stones removal problem by applying the Union Find pattern. Learn to group stones that share rows or columns into connected components and calculate the maximum stones that can be removed efficiently using union and find operations.

Statement

Given an array of nn stones in a two-dimensional plane, where each stone is represented by a pair of x and y coordinates, find the maximum number of stones we can remove with the following condition:

A stone can be removed if it shares either the same row or the same column with another stone that has not been removed so far.

Stones are provided as an array, stones, of length nn, where stones[i]=[xi,yi]stones[i] = [x_i, y_i] ...