Referred by a friend.

Received the first phone technical interview in two weeks.

I spent 20 minutes introducing the projects on my resume and answered 2 coding questions.

Flood-fill game.

Given a 2D screen, the location of a pixel, and a new color, replace the color of the given pixel and all adjacent pixels of the same original color with the new color.

Input:

• A 2D matrix representing the screen.
• The x and y coordinates of the target pixel.
• The target color.

Output: The 2D matrix after the flood fill operation.