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Day 8 - Advent of Code 2021. Eric Wastl. adventofcode.com . Accessed Mar 7, 2022.

Part I Description

You barely reach the safety of the cave when the whale smashes into the cave mouth, collapsing it. Sensors indicate another exit to this cave at a much greater depth, so you have no choice but to press on.

As your submarine slowly makes its way through the cave system, you notice that the four-digit seven-segment displays in your submarine are malfunctioning; they must have been damaged during the escape. You’ll be in a lot of trouble without them, so you’d better figure out what’s wrong.

Day 1 - Advent of Code 2021: Sonar Sweep. Eric Wastl. adventofcode.com . Accessed Feb 18, 2022.

Part One

As the submarine drops below the surface of the ocean, it automatically performs a sonar sweep of the nearby sea floor. On a small screen, the sonar weep report (your puzzle input) appears: each line is a measurement of the sea floor depth as the sweep looks further and further away from the submarine.