Advent-of-Code/2021/day3/main.go
2023-12-04 20:08:01 +01:00

96 lines
1.9 KiB
Go

package main
import (
"bufio"
"fmt"
"math/bits"
"os"
"strconv"
"strings"
)
func GetData(s string) []string {
var result []string
fileReader, err := os.Open(s)
if err != nil {
return nil
}
lines := bufio.NewScanner(fileReader)
lines.Split(bufio.ScanLines)
for lines.Scan() {
result = append(result, lines.Text())
}
return result
}
func ConvertToUsefulData(s []string) [][]uint {
a := make([][]uint, len(s[0]))
for i := range a {
a[i] = make([]uint, len(s))
}
for i, data := range s {
split := strings.Split(data, "")
for j, data2 := range split {
x, _ := strconv.Atoi(data2)
a[j][i] = uint(x)
}
}
return a
}
func main() {
result := Part1(ConvertToUsefulData(GetData("./data")))
fmt.Printf("The Power consumption is: %d\n", result)
}
func Part1(data [][]uint) uint {
gammaRate := uint(0)
epsilonRate := uint(0)
for _, rows := range data {
dict := make(map[uint]uint)
for _, entry := range rows {
dict[entry] = dict[entry] + 1
}
if dict[0] > dict[1] {
gammaRate = gammaRate << 1
epsilonRate = epsilonRate << 1
epsilonRate, _ = bits.Add(epsilonRate, 1, 0)
} else {
gammaRate = gammaRate << 1
epsilonRate = epsilonRate << 1
gammaRate, _ = bits.Add(gammaRate, 1, 0)
}
}
//fmt.Printf("Gamma Rate: %b as int (%d)\n", gammaRate, gammaRate)
//fmt.Printf("Epsilon Rate: %b as int (%d)\n", epsilonRate, epsilonRate)
return gammaRate * epsilonRate
}
func dataSliceConvert(data [][]uint) [][]uint {
a := make([][]uint, len(data[0]))
for i := range a {
a[i] = make([]uint, len(data))
}
for i, row := range data {
for j, dataEntry := range row {
a[j][i] = dataEntry
}
}
return a
}
func OxygenRate(data [][]uint) uint {
return 0
}
func Co2Rate(data [][]uint) uint {
return 0
}
func Part2(data [][]uint) (uint, uint) {
ordered := dataSliceConvert(data)
for _, d := range ordered {
fmt.Println(d)
}
return 0, 0
}