Reading for another coding interview challenge? Can you solve a problem typically asked by big Sillicon Valley tech companies? Lets find out. Write your answer in a github gist and comment it below!

Difficulty: Easy

Given an array of time intervals (start, end) for classroom lectures (possibly overlapping), find the minimum number of rooms required.

For example, given [(30, 75), (0, 50), (60, 150)], you should return 2.