Flood-fill game. Given a 2D screen, location of a pixel in the screen and a color, replace color of the given pixel and all adjacent same colored pixels with the given color. Input is a 2D matrix, xth and yth of the pixel and the target color. The output should be the 2D matrix after this flood fill game.
1 algorithm problems about string, and 1 follow up.
Leetcode questions, data structures (trees, graphs, arrays, strings), algorithms. Personality questions based on principles.
Write a program to reverse the words in a sentence. "Sky is blue" would be "blue is sky". Write test cases for this program
find word in grid
There are several patients with some boolean type attributes. how to present them in a data structure or in a table? follow up: there are nearly 1000 attributes, most of every patient's attributes value are false, only 4 to 5 are true, how to reduce the table space?
There were many questions like"tell us about a hard problem you had to solve" and "did you ever do anything risky" and "did your boss ever ask you to do something that you didn't agree with"
How can you copy files from one directory to another using Python?
Signed NDA
1. Find the minimum number of train stations required given a list of departure and arrival times. 2. The online screens had a couple of SAT style questions and some debugging questions.
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