0302. Smallest Rectangle Enclosing Black Pixels
Last updated
Last updated
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.