Added part 2 (golfed it a bit)

2 files changed, 25 insertions, 25 deletions

diff --git a/2020/21/solve.js b/2020/21/solve.js
index 8202603..e39e76f 100644
--- a/2020/21/solve.js
+++ b/2020/21/solve.js
@@ -2,12 +2,10 @@ const { _, performance } = require("perf_hooks");
 const fs = require("fs");
 const d = fs.readFileSync("input", "utf8").split("\n");
 
-function partOne() {
-c=" (contains ";f=d.map(x=>({i:x.split(c)[0].split(" "),a:x.split(c)[1].split(")")[0].split(", ")}));a=new Map();for(g of f)for(b of g.a)a.set(b,new Set(a.get(b)?[...g.i].filter(x=>a.get(b).has(x)):g.i));return f.map(x=>x.i).flat().filter(x=>!new Set([...a.values()].reduce((a,b)=>[...a,...b],[])).has(x)).length;
-}
-
 const tic = performance.now();
-console.log(partOne());
-//console.log(partTwo());
+
+// YAYY
+(()=>{c=" (contains ";f=d.map(x=>({i:x.split(c)[0].split(" "),a:x.split(c)[1].split(")")[0].split(", ")}));a=new Map();for(g of f)for(b of g.a)a.set(b,new Set(a.get(b)?[...g.i].filter(x=>a.get(b).has(x)):g.i));console.log(f.map(x=>x.i).flat().filter(x=>!new Set([...a.values()].reduce((a,b)=>[...a,...b],[])).has(x)).length);o=Array.from(a,([b,i])=>({b,i}));let n;do{n=!1;for(b of o)if(b.i.size>1){b.i=new Set([...b.i].filter(x=>!o.filter(x=>x.i.size==1).map(x=>[...x.i][0]).includes(x)));n=!0}}while(n)console.log(o.sort((a,b)=>a.b.localeCompare(b.b)).map(x=>[...x.i][0]).join(','))})()
+
 const toc = performance.now();
 console.log("TIME: " + ((toc - tic) / 1000).toFixed(6) + " seconds");
diff --git a/2020/README b/2020/README
index d0aaae9..68de215 100644
--- a/2020/README
+++ b/2020/README
@@ -1,19 +1,21 @@
-Day 01: TIME: 0.006000 seconds
-Day 02: TIME: 0.000710 seconds
-Day 03: TIME: 0.000174 seconds
-Day 04: TIME: 0.001569 seconds
-Day 05: TIME: 0.000492 seconds
-Day 06: TIME: 0.021799 seconds
-Day 07: TIME: 0.056844 seconds
-Day 08: TIME: 0.021424 seconds
-Day 09: TIME: 0.012570 seconds
-Day 10: TIME: 0.000013 seconds
-Day 11: TIME: 0.036652 seconds
-Day 12: TIME: 0.000616 seconds
-Day 13: TIME: 0.000052 seconds
-Day 14: TIME: 0.023437 seconds
-Day 15: TIME: 4.195079 seconds
-Day 16: TIME: 0.000809 seconds
-Day 17: TIME: 0.196286 seconds
-Day 18: TIME: 0.000249 seconds
-Day 19: TIME: 0.924737 seconds
+Day 01: TIME: 0.008000 seconds
+Day 02: TIME: 0.003061 seconds
+Day 03: TIME: 0.000392 seconds
+Day 04: TIME: 0.006114 seconds
+Day 05: TIME: 0.001041 seconds
+Day 06: TIME: 0.024731 seconds
+Day 07: TIME: 0.055883 seconds
+Day 08: TIME: 0.021691 seconds
+Day 09: TIME: 0.013926 seconds
+Day 10: TIME: 0.000039 seconds
+Day 11: TIME: 0.096766 seconds
+Day 12: TIME: 0.000917 seconds
+Day 13: TIME: 0.000115 seconds
+Day 14: TIME: 0.059947 seconds
+Day 15: TIME: 5.490485 seconds
+Day 16: TIME: 0.003559 seconds
+Day 17: TIME: 0.276986 seconds
+Day 18: TIME: 0.001221 seconds
+Day 19: TIME: 1.353835 seconds
+Day 20: TIME: 0.000376 seconds
+Day 21: TIME: 0.032914 seconds