Added day 6

day06/input.txt

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day06/part1.js

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+var input = require("fs").readFileSync("input.txt").toString().replace(/\r/g, "");
+var groups = input.split("\n").reduce((a, b)=>{b.split("").forEach((x, i)=>{if(!a[i]){a[i] = [];} a[i].push(x);}); return a;}, []);
+var freqs = groups.map((g)=>(g.reduce((a, b)=>{if(!a[b]){a[b] = 0;}; a[b]++; return a;}, {})));
+var largest = freqs.map((f)=>(Object.keys(f).map((l)=>[l, f[l]]))).map((f)=>(f.sort((a, b)=>(b[1] - a[1])))).map((a)=>(a[0][0]));
+var key = largest.join("");
+console.log(key);

day06/part2.js

@@ -0,0 +1,6 @@
+var input = require("fs").readFileSync("input.txt").toString().replace(/\r/g, "");
+var groups = input.split("\n").reduce((a, b)=>{b.split("").forEach((x, i)=>{if(!a[i]){a[i] = [];} a[i].push(x);}); return a;}, []);
+var freqs = groups.map((g)=>(g.reduce((a, b)=>{if(!a[b]){a[b] = 0;}; a[b]++; return a;}, {})));
+var largest = freqs.map((f)=>(Object.keys(f).map((l)=>[l, f[l]]))).map((f)=>(f.sort((a, b)=>(a[1] - b[1])))).map((a)=>(a[0][0]));
+var key = largest.join("");
+console.log(key);