79 lines
1.5 KiB
Odin
79 lines
1.5 KiB
Odin
package main
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import "core:math"
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import "core:slice"
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import "core:strconv"
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import "core:strings"
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import "core:bytes"
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import "core:fmt"
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import "core:os"
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import "../util"
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part_1 :: proc(lines: []string) {
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result: = 0
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batches := make([dynamic]map[rune]bool)
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batch := make(map[rune]bool)
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for line, idx in lines {
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if len(line) == 0 {
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append(&batches, batch)
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batch = make(map[rune]bool)
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}
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for letter in line {
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batch[letter] = true
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}
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}
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for answers in batches {
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result += len(answers)
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}
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fmt.printfln("Part 1: %d", result)
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}
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Batch :: struct {
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amount: int,
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answers: map[rune]int
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}
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part_2 :: proc(lines: []string) {
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result: = 0
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batches := make([dynamic]Batch)
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batch := Batch{}
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for line, idx in lines {
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if len(line) == 0 {
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append(&batches, batch)
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batch = Batch{}
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} else {
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for letter in line {
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batch.answers[letter] += 1
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}
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batch.amount += 1
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}
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}
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for batch in batches {
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for _, num_answers in batch.answers {
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if batch.amount == num_answers do result += 1
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}
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}
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fmt.printfln("Part 2: %d", result)
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}
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main :: proc() {
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context.allocator = context.temp_allocator
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defer free_all(context.temp_allocator)
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INPUT :: #load("input.txt", string)
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lines := strings.split(INPUT, "\n")
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lines = lines[:len(lines)-1]
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part_1(lines)
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part_2(lines)
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}
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