Posts

Advent of code 2024 - Day 2: Red-Nosed Reports

2024-12-10

R

Table of Contents

I try to solve this year’s Advent of Code 2024 riddles in R. This is Day 2 - see https:adventofcode.com/2024/day/2

Part 1: Safe reports #

Lets first read the task:

The unusual data (your puzzle input) consists of many reports, one report per line. Each report is a list of numbers called levels that are separated by spaces. For example:
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Advent of code 2024 - Day 1: Historian Hysteria

2024-12-07

R

Table of Contents

I try to solve this year’s Advent of Code 2024 riddles in R. This is Day 1 - see https:adventofcode.com/2024/day/1

Part 1: Locations #

Lets first read the task:

Throughout the Chief’s office, the historically significant locations are listed not by name but by a unique number called the location ID. To make sure they don’t miss anything, The Historians split into two groups, each searching the office and trying to create their own complete list of location IDs.
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Advent of code 2023 - Day 7: Camel Cards

2024-01-04

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 7 - see https:adventofcode.com/2023/day/7

Part 1 #

Lets first read the task:

In Camel Cards, you get a list of hands, and your goal is to order them based on the strength of each hand. A hand consists of five cards labeled one of A, K, Q, J, T, 9, 8, 7, 6, 5, 4, 3, or 2. The relative strength of each card follows this order, where A is the highest and 2 is the lowest.
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Advent of code 2023 - Day 6: Wait For It

2024-01-04

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 6 - see https:adventofcode.com/2023/day/6

Part 1 #

Lets first read the task:

You manage to sign up as a competitor in the boat races just in time. The organizer explains that it’s not really a traditional race - instead, you will get a fixed amount of time during which your boat has to travel as far as it can, and you win if your boat goes the farthest.
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Advent of code 2023 - Day 5: If You Give A Seed A Fertilizer

2023-12-30

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 5 - see https:adventofcode.com/2023/day/5

Update [2023-12-31 So]:

substitute get_generator() (own implementation) with range() (Python inbuilt)
improve grid search so that it goes through all location ranges, still starting with the lowest range

Part 1 #

Lets first read the task:

The almanac (your puzzle input) lists all of the seeds that need to be planted. It also lists what type of soil to use with each kind of seed, what type of fertilizer to use with each kind of soil, what type of water to use with each kind of fertilizer, and so on. Every type of seed, soil, fertilizer and so on is identified with a number, but numbers are reused by each category - that is, soil 123 and fertilizer 123 aren’t necessarily related to each other.
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Advent of code 2023 - Day 4: Scratchcards

2023-12-19

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 4 - see https:adventofcode.com/2023/day/4

Part 1 #

Lets first read the task:

The Elf leads you over to the pile of colorful cards. There, you discover dozens of scratchcards, all with their opaque covering already scratched off. Picking one up, it looks like each card has two lists of numbers separated by a vertical bar (|): a list of winning numbers and then a list of numbers you have. You organize the information into a table (your puzzle input).
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Advent of code 2023 - Day 3: Gear Ratios

2023-12-18

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 3 - see https:adventofcode.com/2023/day/3

Part 1 #

Lets first read the task:

The engine schematic (your puzzle input) consists of a visual representation of the engine. There are lots of numbers and symbols you don’t really understand, but apparently any number adjacent to a symbol, even diagonally, is a “part number” and should be included in your sum. (Periods (.) do not count as a symbol.)
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Advent of code 2023 - Day 2: Cube Conundrum

2023-12-11

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 2 - see https:adventofcode.com/2023/day/2

Part 1 #

Lets first read the task:

As you walk, the Elf shows you a small bag and some cubes which are either red, green, or blue. Each time you play this game, he will hide a secret number of cubes of each color in the bag, and your goal is to figure out information about the number of cubes.
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Advent of code 2023 - Day 1: Trebuchet?!

2023-12-10

Python

Table of Contents

This year I try to record my attempt at solving the Advent of Code 2023 riddles. This is Day 1 - see https:adventofcode.com/2023/day/1

Part 1 #

Our first task is the following:

The newly-improved calibration document consists of lines of text; each line originally contained a specific calibration value that the Elves now need to recover. On each line, the calibration value can be found by combining the first digit and the last digit (in that order) to form a single two-digit number.
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