Too Long; Didn't Read
In this my first article , I will tell you how to implement the<strong> Trapping Rain Water</strong> question which have asked in an <em>interview by </em><a href="https://www.youtube.com/watch?v=UzeL2GcLx3Y" target="_blank"><em>Google</em></a><em> , </em><a href="http://www.businessinsider.com/twitter-job-interview-question-rainfall-walls-2013-12" target="_blank"><em>Twitter</em></a><em> and asked by many companies , </em>with<em> </em>using <strong>Swift</strong> , <strong>UIImageGraphics</strong> .