Day 5, Part 1, Part 2 (#32)

Author: jacksonmowry

2023/05/jacksonmowry.v

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+module main
+
+import os
+import arrays
+import math
+
+fn main() {
+	input := os.read_file('seed_map.input')!
+		.split('\n\n')
+		.map(it.split_into_lines().map(it.trim_space()))
+	mut seeds := (input[0][0].split(': ')[1]).split(' ').map(it.i64())
+	for m in 1 .. 8 {
+		maps := input[m][1..].map(it.split(' ').map(it.i64()))
+		for i := 0; i < seeds.len; i++ {
+			for line in maps {
+				if seeds[i] >= line[1] && seeds[i] <= line[1] + line[2] {
+					seeds[i] = line[0] + (seeds[i] - line[1])
+					break
+				}
+			}
+		}
+	}
+
+	println('Part 1: ${arrays.min(seeds)!}')
+
+	mut seeds_2 := (input[0][0].split(': ')[1]).split(' ').map(it.u64())
+	mut part_2_min := max_u64
+	mut maps := [][][]u64{}
+	for i in 1 .. 8 {
+		maps << input[i][1..].map(it.split(' ').map(it.u64()))
+	}
+	for i := 0; i < seeds_2.len - 1; i += 2 {
+		end := seeds_2[i] + seeds_2[i + 1] - 1
+		for start := seeds_2[i]; start <= end; start++ {
+			mut copy := start
+			for mapx in maps {
+				for line in mapx {
+					if copy >= line[1] && copy < line[1] + line[2] {
+						copy = line[0] + copy - line[1]
+						break
+					}
+				}
+			}
+			part_2_min = math.min(part_2_min, copy)
+		}
+	}
+	println('Part 2: ${part_2_min}')
+}

2023/05/seed_map.input

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+seeds: 79 14 55 13
+
+seed-to-soil map:
+50 98 2
+52 50 48
+
+soil-to-fertilizer map:
+0 15 37
+37 52 2
+39 0 15
+
+fertilizer-to-water map:
+49 53 8
+0 11 42
+42 0 7
+57 7 4
+
+water-to-light map:
+88 18 7
+18 25 70
+
+light-to-temperature map:
+45 77 23
+81 45 19
+68 64 13
+
+temperature-to-humidity map:
+0 69 1
+1 0 69
+
+humidity-to-location map:
+60 56 37
+56 93 4

known_outputs/2023/05/jacksonmowry.out

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+Part 1: 35
+Part 2: 46