Flood Fill

Prereq: BFS on Graph

In computer graphics, an uncompressed raster image is presented as a matrix of numbers. Each entry of the matrix represents the color of a pixel. A flood fill algorithm takes a coordinate r, c, a replacement color and replaces all pixels connected to r, c that has the same color as r, c with replacement color. (e.g. MS-Paint's paint bucket tool).

Title

Script

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

Contrary to popular belief, Lorem Ipsum is not simply random text.

  >>> a = [1, 2, 3]
  >>> a[-1]
  3

Get premium for instant access to all content and solutions

Upgrade