0302. Smallest Rectangle Enclosing Black Pixels
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https://leetcode.com/problems/smallest-rectangle-enclosing-black-pixels
You are given an m x n binary matrix image where 0 represents a white pixel and 1 represents a black pixel.
The black pixels are connected (i.e., there is only one black region). Pixels are connected horizontally and vertically.
Given two integers x and y that represents the location of one of the black pixels, return the area of the smallest (axis-aligned) rectangle that encloses all black pixels.
You must write an algorithm with less than O(mn) runtime complexity
Example 1:
Example 2:
Constraints:
m == image.length
n == image[i].length
1 <= m, n <= 100
image[i][j] is either '0' or '1'.
1 <= x < m
1 <= y < n
image[x][y] == '1'.
The black pixels in the image only form one component.
