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Solution: Most Stones Removed with Same Row or Column

Explore how to maximize the number of stones removed from a grid by grouping stones sharing rows or columns using a union find data structure. Understand how to efficiently implement union and find operations to identify connected components and calculate the solution with optimal time and space complexity.

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] ...