The avatar for @ldgrp
Leo Orpilla III
Public
🎄 Advent of Code 2023
Edited
Dec 13, 2023
Fork of Day N - Advent of Code
🎄 Advent of Code 2023
Day N - Advent of CodeDay 1 - Advent of Code 2023Day 2 - Advent of Code 2023Day 3 - Advent of Code 2023Day 4 - Advent of Code 2023Day 6 - Advent of Code 2023Day 8 - Advent of Code 2023Day 9 - Advent of Code 2023Day 11 - Advent of Code 2023Day 12 - Advent of Code 2023
Day 13 - Advent of Code
Day 16 - Advent of Code 2023Day 17 - Advent of Code 2023
Insert cell
Insert cell
Insert cell
Insert cell
patterns = input.split("\n\n").map((p) => p.split("\n"))
Insert cell
Insert cell
reflects = (pattern) => {
return _.zip(pattern, pattern.slice(1))
.map(([a, b], i) => [a, b, i])
.filter(([a, b, i]) => {
return a === b && isActualReflect(pattern, i);
})
.map(([a, b, i]) => i);
}
Insert cell
isActualReflect = (pattern, r) => {
let ii = 0;
let err = 0;
for (let i = r; i >= 0; i--) {
ii++;
if (r + ii >= pattern.length) break;
const count = _.zip(pattern[i], pattern[r + ii]).filter(
([a, b]) => a !== b
);

console.log(pattern[i], pattern[r + ii], count);
if (count.length === 1) err++;
}
return err === 1;
}
Insert cell
lefts = patterns
.flatMap((pattern) => [...reflects(transposed(pattern))])
.map((x) => x + 1)

Insert cell
tops = patterns
.flatMap((pattern) => [...reflects(pattern)])
.map((x) => 100 * (x + 1))
Insert cell
_.sum([...tops, ...lefts])
Insert cell
transposed = (pattern) =>
_.zip(...pattern.map((x) => Array.from(x))).map((x) => x.join(""))
Insert cell
transposed(patterns[0])
Insert cell
patterns[0]
Insert cell
part1 = ""
Insert cell
Insert cell
Insert cell
part2 = ""
Insert cell
Insert cell
Insert cell
input = textarea || select.value
Insert cell
testInput = `#.##..##.
..#.##.#.
##......#
##......#
..#.##.#.
..##..##.
#.#.##.#.

#...##..#
#....#..#
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#####.##.
#####.##.
..##..###
#....#..#`
Insert cell
problemInput = `#.#.##.##.#
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