/categories/aoc2021/Recent content in AoC2021 on Welcome yo my personal blogHugo -- gohugo.ioCopyright © 2016-{year} Giovani Zamboni. All Rights Reserved.Wed, 01 Dec 2021 00:00:00 +0000/posts/aoc2021day1/Wed, 01 Dec 2021 00:00:00 +0000/posts/aoc2021day1/Day 1: Sonar Sweep Well… let’s save the Christmas again, in a submarine… ¯\_(ツ)_/¯. The first problem is about to help the sub crew to check how quickly the depth increases. We have the sonar sweep report (our puzzle input) appears: each line is a measurement of the sea floor depth as the sweep looks further and further away from the submarine. And to do this, count the number of times a depth measurement increases from the previous measurement.