HackerRank – Connected Cell in a Grid - Warm up with Five Practices (IV)

May 11, 2016

Warm up an algorithm like tennis sports, work on different strokes before she plays matches. Julia chose the algorithm - Connected Cell In a Grid to warm up for a few hours. 

Last time, less than 1 month ago, Julia did work on this algorithm – connected cell in a grid. And then, she started to warm up again.

Here is one of blogs last practice on April 16, 2016:

http://juliachencoding.blogspot.ca/2016/04/hackerrank-connected-cell-in-grid.html

Fourth practice, using DFS – recursive function, but use an argument – reference int to track value

     https://gist.github.com/jianminchen/589f05f5c87bb6e018de0a472d8a3b6f

Question and Answer:

1. What do you like the approach - DFS, recursive function, use an argument - reference to track the count? 

Julia likes to use an argument to track the count, and let the recursive function return void.