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days 11-16

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Tim Stallard
2017-12-16 12:12:56 +00:00
parent 492bdb29fd
commit d5fbba3277
16 changed files with 2313 additions and 0 deletions
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1
day11/input.txt Normal file
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day11/part1.js Normal file
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var input = require("fs").readFileSync("input.txt").toString().replace("\n", "");
var dirs = input.split(",");
var replacements = [
[["n", "s"], ""],
[["ne", "sw"], ""],
[["nw", "se"], ""],
[["ne", "nw"], "n"],
[["se", "sw"], "s"],
[["ne", "s"], "se"],
[["se", "n"], "ne"],
[["sw", "n"], "nw"],
[["nw", "s"], "sw"],
];
var oldlength = 0;
while(dirs.length != oldlength){
oldlength = dirs.length;
for(var replacement of replacements){
if(dirs.indexOf(replacement[0][0]) > -1 && dirs.indexOf(replacement[0][1]) > -1){
dirs.splice(dirs.indexOf(replacement[0][0]), 1);
dirs.splice(dirs.indexOf(replacement[0][1]), 1);
if(replacement[1]){
dirs.push(replacement[1]);
}
}
}
}
console.log(dirs.length);

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day11/part2.js Normal file
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var input = require("fs").readFileSync("input.txt").toString().replace("\n", "");
var dirs = input.split(",");
function simplify(dirs){
var replacements = [
[["n", "s"], ""],
[["ne", "sw"], ""],
[["nw", "se"], ""],
[["ne", "nw"], "n"],
[["se", "sw"], "s"],
[["ne", "s"], "se"],
[["se", "n"], "ne"],
[["sw", "n"], "nw"],
[["nw", "s"], "sw"],
];
var oldlength = 0;
while(dirs.length != oldlength){
oldlength = dirs.length;
for(var replacement of replacements){
if(dirs.indexOf(replacement[0][0]) > -1 && dirs.indexOf(replacement[0][1]) > -1){
dirs.splice(dirs.indexOf(replacement[0][0]), 1);
dirs.splice(dirs.indexOf(replacement[0][1]), 1);
if(replacement[1]){
dirs.push(replacement[1]);
}
}
}
}
return dirs;
}
var maxlen = 0;
for(var i = 0; i < dirs.length; i++){
var sub = dirs.slice(0, i);
var len = simplify(sub).length;
if(len > maxlen){
maxlen = len;
}
console.log(i/dirs.length);
}
console.log(maxlen);