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Most Stones Removed with Same Row or Column

Explore how to apply the union find data structure to optimize stone removal on a 2D plane. Understand the condition that allows stone removal when stones share rows or columns, and develop a solution to find the maximum stones that can be removed. This lesson enhances your ability to tackle graph connectivity problems efficiently in coding interviews.

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] ...