49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package daytwo
|
|
|
|
import (
|
|
"advent-of-code/internal/registry"
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
func init() {
|
|
registry.Register("2015D2", ParseInput, PartOne, PartTwo)
|
|
}
|
|
|
|
func ParseInput(filepath string) []string {
|
|
content, _ := os.ReadFile(filepath)
|
|
return strings.Split(string(content), "\n")
|
|
}
|
|
|
|
func PartOne(data []string) int {
|
|
total := 0
|
|
for _, line := range data {
|
|
parts := strings.Split(line, "x")
|
|
length, _ := strconv.Atoi(parts[0])
|
|
width, _ := strconv.Atoi(parts[1])
|
|
height, _ := strconv.Atoi(parts[2])
|
|
total += 2*length*width + 2*width*height + 2*height*length + min(length*width, width*height, height*length)
|
|
}
|
|
return total
|
|
}
|
|
|
|
func PartTwo(data []string) int {
|
|
total := 0
|
|
for _, line := range data {
|
|
parts := strings.Split(line, "x")
|
|
length, _ := strconv.Atoi(parts[0])
|
|
width, _ := strconv.Atoi(parts[1])
|
|
height, _ := strconv.Atoi(parts[2])
|
|
|
|
smallest := min(length, width, height)
|
|
middle := length + width + height - smallest - max(length, width, height)
|
|
|
|
perimeter := 2 * (smallest + middle)
|
|
volume := length * width * height
|
|
|
|
total += perimeter + volume
|
|
}
|
|
return total
|
|
}
|