|
|
@@ -56,12 +56,23 @@ func compact(disk []int, free int) []int {
|
|
|
return disk
|
|
|
}
|
|
|
|
|
|
-func part1(diskMap []byte) int {
|
|
|
+func calculateChecksum(disk []int) int64 {
|
|
|
+ var checksum int64
|
|
|
+
|
|
|
+ for i := range disk {
|
|
|
+ if disk[i] != -1 {
|
|
|
+ checksum += int64(disk[i] * i)
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return checksum
|
|
|
+}
|
|
|
+
|
|
|
+func part1(diskMap []byte) int64 {
|
|
|
free, disk := getDisk(diskMap)
|
|
|
compacted := compact(disk, free)
|
|
|
- fmt.Println(compacted)
|
|
|
|
|
|
- return 0
|
|
|
+ return calculateChecksum(compacted)
|
|
|
}
|
|
|
|
|
|
func main() {
|
|
|
@@ -74,5 +85,5 @@ func main() {
|
|
|
log.Fatal(err)
|
|
|
}
|
|
|
|
|
|
- fmt.Println(part1(diskMap))
|
|
|
+ fmt.Println("Part1:", part1(diskMap))
|
|
|
}
|
