112 lines
2.0 KiB
Go
112 lines
2.0 KiB
Go
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package main
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import (
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"bufio"
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"fmt"
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"log"
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"os"
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"strconv"
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"strings"
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)
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func main() {
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input := stdinToStringSlice()
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var press []rune
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keypad := initKeypad("diamond")
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pos := '5'
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for _, i := range input {
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for _, j := range i {
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pos = moveFinger(j, pos, keypad)
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}
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press = append(press, pos)
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}
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fmt.Println("Code: ", string(press))
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}
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func moveFinger(dir rune, start rune, keypad map[string]rune) rune {
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// Find the starting button
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var startX, startY int
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for k, v := range keypad {
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if v == start {
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// Found it
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strCoords := strings.Split(k, ";")
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startY = atoi(strCoords[0])
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startX = atoi(strCoords[1])
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}
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}
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switch dir {
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case 'U':
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newY := startY - 1
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if keypad[itoa(newY)+";"+itoa(startX)] != 0 {
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return keypad[itoa(newY)+";"+itoa(startX)]
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}
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case 'R':
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newX := startX + 1
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if keypad[itoa(startY)+";"+itoa(newX)] != 0 {
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return keypad[itoa(startY)+";"+itoa(newX)]
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}
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case 'D':
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newY := startY + 1
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if keypad[itoa(newY)+";"+itoa(startX)] != 0 {
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return keypad[itoa(newY)+";"+itoa(startX)]
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}
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case 'L':
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newX := startX - 1
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if keypad[itoa(startY)+";"+itoa(newX)] != 0 {
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return keypad[itoa(startY)+";"+itoa(newX)]
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}
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}
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return start
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}
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func initKeypad(tp string) map[string]rune {
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ret := make(map[string]rune)
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switch tp {
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case "diamond":
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ret["0;2"] = '1'
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ret["1;1"] = '2'
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ret["1;2"] = '3'
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ret["1;3"] = '4'
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ret["2;0"] = '5'
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ret["2;1"] = '6'
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ret["2;2"] = '7'
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ret["2;3"] = '8'
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ret["2;4"] = '9'
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ret["3;1"] = 'A'
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ret["3;2"] = 'B'
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ret["3;3"] = 'C'
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ret["4;2"] = 'D'
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case "square":
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currKey := 1
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for i := 0; i < 3; i++ {
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for j := 0; j < 3; j++ {
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ret[itoa(i)+";"+itoa(j)] = rune(currKey)
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currKey++
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}
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}
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}
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return ret
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}
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func itoa(i int) string {
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return strconv.Itoa(i)
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}
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func atoi(i string) int {
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var ret int
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var err error
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if ret, err = strconv.Atoi(i); err != nil {
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log.Fatal("Invalid Atoi")
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}
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return ret
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}
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func stdinToStringSlice() []string {
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var input []string
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scanner := bufio.NewScanner(os.Stdin)
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for scanner.Scan() {
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input = append(input, scanner.Text())
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}
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return input
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}
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