My TV remote control has arrow buttons and an OK button.
I can use these to move a "cursor" on a logical screen keyboard to type words...
The screen "keyboard" layout looks like this
<style> #tvkb { width : 400px; border: 5px solid gray; border-collapse: collapse; } #tvkb td { color : orange; background-color : black; text-align : center; border: 3px solid gray; border-collapse: collapse; } </style>| a | b | c | d | e | 1 | 2 | 3 |
| f | g | h | i | j | 4 | 5 | 6 |
| k | l | m | n | o | 7 | 8 | 9 |
| p | q | r | s | t | . | @ | 0 |
| u | v | w | x | y | z | _ | / |
| aA | SP |
aAis the SHIFT key. Pressing this key toggles alpha characters between UPPERCASE and lowercaseSPis the space character- The other blank keys in the bottom row have no function
How many button presses on my remote are required to type the given words?
This Kata is an extension of the earlier ones in this series. You should complete those first.
- The cursor always starts on the letter
a(top left) - The alpha characters are initially lowercase (as shown above)
- Remember to also press
OKto "accept" each letter - Take the shortest route from one letter to the next
- The cursor wraps, so as it moves off one edge it will reappear on the opposite edge
- Although the blank keys have no function, you may navigate through them if you want to
- Spaces may occur anywhere in the
wordsstring - Do not press the SHIFT key until you need to. For example, with the word
e.Z, the SHIFT change happens after the.is pressed (not before)
words = Code Wars
- C =>
a-aA-OK-A-B-C-OK = 6 - o =>
C-B-A-aA-OK-u-v-w-x-y-t-o-OK = 12 - d =>
o-j-e-d-OK = 4 - e =>
d-e-OK = 2 - space =>
e-d-c-b-SP-OK = 5 - W =>
SP-aA-OK-SP-V-W-OK = 6 - a =>
W-V-U-aA-OK-a-OK = 6 - r =>
a-f-k-p-q-r-OK = 6 - s =>
r-s-OK = 2
Answer = 6 + 12 + 4 + 2 + 5 + 6 + 6 + 6 + 2 = 49