91df817cfe
* fix(guide) add stubs and correct file path misspellings and pr… (#36528) * fix: corrected file path to match curriculum * fix: renamed to newer challenge name * fix: added solutions to articles from challenge files * fix: added missing .english to file name * fix: added missing title to guide article * fix: correct solution for guide article * fix: replaced stub with hint * fix: added space in Hint headers * fix: added solution to guide article * fix: added solution to guide article * test: replaced stub with hint and solution * fix: add Problem number: to title * fix: changed generatorexponential to correct name * fix: renamed knight's tour to knights-tour * fix: updated guide article
1.2 KiB
1.2 KiB
title
| title |
|---|
| Straddling checkerboard |
Straddling checkerboard
Solutions
Solution 1 (Click to Show/Hide)
function straddle(message, alphabet) {
var prefixes = new Array("", alphabet[0].indexOf(" "), alphabet[0].lastIndexOf(" "))
var out = ""
message = message.toUpperCase()
message = message.replace(/([0-9])/g, "/$1") // dumb way to escape numbers
for (var i = 0; i < message.length; i++) {
var chr = message[i]
if (chr == " ") continue
for (var j = 0; j < 3; j++) {
var k = alphabet[j].indexOf(chr)
if (k < 0) continue
out += prefixes[j].toString() + k
}
if (chr == "/") out += message[++i]
}
return out
}
function unstraddle(message, alphabet) {
var prefixes = new Array("", alphabet[0].indexOf(" "), alphabet[0].lastIndexOf(" "))
var out = ""
var n, o
for (var i = 0; i < message.length; i++) {
n = message[i] * 1
switch (n) {
case prefixes[1]:
o = alphabet[1][message[++i]];
break
case prefixes[2]:
o = alphabet[2][message[++i]];
break
default:
o = alphabet[0][n]
}
o == "/" ? out += message[++i] : out += o
}
return out
}