# GeetCode Hub

An `n x n` grid is composed of `1 x 1` squares where each `1 x 1` square consists of a `'/'`, `'\'`, or blank space `' '`. These characters divide the square into contiguous regions.

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

Note that backslash characters are escaped, so a `'\'` is represented as `'\\'`.

Example 1: ```Input: grid = [" /","/ "]
Output: 2
```

Example 2: ```Input: grid = [" /","  "]
Output: 1
```

Example 3: ```Input: grid = ["\\/","/\\"]
Output: 4
Explanation: (Recall that because \ characters are escaped, "\\/" refers to \/, and "/\\" refers to /\.)
```

Example 4: ```Input: grid = ["/\\","\\/"]
Output: 5
Explanation: (Recall that because \ characters are escaped, "\\/" refers to \/, and "/\\" refers to /\.)
```

Example 5: ```Input: grid = ["//","/ "]
Output: 3
```

Constraints:

• `n == grid.length`
• `n == grid[i].length`
• `1 <= n <= 30`
• `grid[i][j]` is either `'/'`, `'\'`, or `' '`.

class Solution { public int regionsBySlashes(String[] grid) { } }