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  1. AoC 2025 - Day 6

    import fs from "node:fs";

    const input = fs.readFileSync("input.txt", "utf-8");

    const sample = `\
123 328  51 64 
 45 64  387 23 
  6 98  215 314
*   +   *   +  `;

    Part 1

    In the first part of today, the input consists of 3 rows of space separated numbers and a row of space separated …

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  2. AoC 2025 - Day 5

    import fs from 'node:fs';

    const input = fs.readFileSync('input.txt', 'utf-8');

    const sample = `\
3-5
10-14
16-20
12-18

1
5
8
11
17
32`;

    Part 1

    The first part of the input has a list of inclusive intervals, eg 3-5 for 3, 4, 5 etc. The second part has a …

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  3. AoC 2025 - Day 4

    This one was quite easy, I quickly saw it can be solved by convolution but since I was using javascript I suffered with all the array handling and the for loops. After I finished the problem, I wanted to my hands on the python implementation, behold

    import numpy as np …
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  4. AoC 2025 - Day 3

    Day 3 of AoC 2025. Following up on yesterday, today I'm gonna try to solve the question using typescript, but in a Jupyter notebook, writing along while programming. Today's input looks like this:

    import fs from "node:fs"

    const input = fs.readFileSync("input.txt", "utf-8")

console.log(input.split('\n').slice …
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  5. Advent of Code 2025

    AoC is back for another year! This time it's a bit shorter, only 12 days. This might be a good change overall, since in 2023 I fizzled out around day 20.

    The first day has us simulating a dial ranging from 0 to 99 on a safe, where we needed …

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