Calculate the detour distance between two different rides. Given four latitude / longitude pairs, where driver one is traveling from point A to point B and driver two is traveling from point C to point D, write a function (in your language of choice) to calculate the shorter of the detour distances the drivers would need to take to pick-up and drop-off the other driver.
Simply execute:
python detour.py latA longA latB longB latC longC latD longD