Search⌘ K
AI Features

Solution: Most Stones Removed with Same Row or Column

Explore the Union Find approach to solve the problem of removing stones from a 2D plane where stones in the same row or column can be grouped. Understand how to efficiently form groups, count distinct connected components, and calculate the maximum stones that can be removed while meeting problem constraints.

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] ...