13th December solution - Advent of Code 2020 - swift

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As part of Advent of Code (adventofcode.com) each day there are two programming tasks to be solved. All solutions are listed here.

I am writing the solutions in Swift with the Playground environment in xCode.

Tasks - 13th December 2020

  1. From a given number, find the next number, which divided by a number from a list, has a remainder of 0.

  2. Find the starting number where from that point onwards, all the numbers in the list are consecutive divisors of that number.

For a more detailed description of the tasks check this out.

The lines variable is an array of string containing all lines of the txt file given each member by Advent of Code, which is individual for each user.

Here are the solutions:

Overview of all solutions of 2020:

Advent of Code 2020 Solutions Overview