This method has the limitation that it will work for only those matrix where the first integer of each row is greater than the last integer of the previous row.

Nim’s game is played with a set of heaps, each containing a certain number of objects or stones. Two players take turns removing objects from the heaps

Chef has opened up a new restaurant. He picks out the positive reviews and posts it on the website of the restaurant. A review is considered to be positive if it is among the top one-third of the total reviews when they are sorted by their rating.