FrogRiverOne Demo Task at Codility.com Lesson 2 – Counting Elements – FrogRiverOne (a small frog wants to get to the other side of a river) demo task solution code written in php. Gives 100/100 score at the time of publishing. By Alec | 16/02/2014 | Coding Tips & How-Toes, PHP, Programming & Freelancing, Programming Testing and Exams | No Comments | Read more