Solution: Regions Cut by Slashes

Explore the union find pattern to solve the problem of counting regions created by slashes in an n by n grid. Learn how to model each grid square as four parts, merge them based on slash characters, and connect neighboring regions. This lesson helps you implement efficient graph connectivity solutions in C++ with an emphasis on time and space complexity analysis.

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Statement
Solution
- Time complexity
- Space Complexity

Statement

An $n \times n$ grid is composed of $n$ , $1 \times 1$ squares, where each $1 \times 1$ square consists of a “/”, “\”, or a blank space. These characters divide the square into adjacent regions.

Given the grid represented as a string array, return the number of regions.

Note:

Backslash characters are escaped, so “\” is represented as “\\”.

A $1 \times 1$ square in the grid will be referred to as a box.

Constraints:

The grid consists of only “/”, “\”, or " " characters.
1 $\leq$ grid.length $\leq$

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