Find minimum locations for seed ranges

Find minimum locations for seed ranges. Adapted from https://www.reddit.com/r/adventofcode/comments/18buwiz/comment/kc78ou6/

Usage

find_min_location(x, start, length)

Arguments

x

String with Almanac.

start

Starting point of the seed range.

length

Length of the seed range.

Value

Minimum location for the given range.