2021 Day 4 Approach and other ideas?

• Advent-of-Code-2021

  6 0 0.0 Python

  My solutions for Advent of Code 2021 (by kermitnirmit)

My solution.

• AOC2021

  8 3 0.0 Python

Here’s the link if anyone cares: https://github.com/hugseverycat/AOC2021/blob/master/day4.py

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• pony_aoc2021

  1 1 1.8 Pony

  Advent of Code 2021 in Pony

My solution is written in Pony which is an Actor based language so I obviously wanted to solve all the boards in parallel.

• aoc

  5 11 0.0 q

  Advent Of Code (http://adventofcode.com/) solutions (by mkst)

For each board I created a bitmask to track called numbers. Iterate through the bingo calls. If the call results in a line, I return the "answer" otherwise return the updated bitmask. After iterating over all boards I have a list of results, then for part 1, pick the first result that was a number rather than bitmask, and part 2 find the last result... It's pretty horrible when explained in words, but the code is.. ok-ish. https://github.com/mkst/aoc/blob/master/2021/04.q

• advent-of-code-2021

  1 0 3.2 Crystal

• aoc

  3 1 7.7 Rust

  Advent of Code solutions (by vodik)

With this, I managed to achieve a solution that's 6-7µs for part1 and ~10-11µs for part2 in Rust.

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