From ceacaf6948f00949388bb72941e0df4c82334b6c Mon Sep 17 00:00:00 2001
From: Baipyrus <simon.waltemathe@gmail.com>
Date: Fri, 8 Dec 2023 22:21:34 +0100
Subject: [PATCH] get exact hand type

---
 Day7/Part1.js | 38 +++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 15 deletions(-)

diff --git a/Day7/Part1.js b/Day7/Part1.js
index 3e2f490..9cee6d1 100644
--- a/Day7/Part1.js
+++ b/Day7/Part1.js
@@ -1,32 +1,40 @@
 import { readFileSync } from "fs";
 const t0 = performance.now();
 
-const patterns = [
-	"01234",
-	"00123",
-	"00112",
-	"00012",
-	"00011",
-	"00001",
-	"00000",
+const cardPattern = [
+	[1, 1, 1, 1, 1],
+	[2, 1, 1, 1],
+	[2, 2, 1],
+	[3, 1, 1],
+	[3, 2],
+	[4, 1],
+	[5],
 ];
 const cards = ["A", "K", "Q", "J", "T", "9", "8", "7", "6", "5", "4", "3", "2"];
 const input = readFileSync("input.txt")
 	.toString()
 	.split("\r\n")
 	.filter((e) => e.length > 0);
-const plays = input.map((e) => {
-	const [draw, bidding] = e.split(" ");
+const plays = input.map((p) => {
+	const [draw, bidding] = p.split(" ");
 
-	let count = 0;
-	const hand = draw
+	const count = draw
 		.split("")
 		.map((e) => cards.indexOf(e))
 		.sort((a, b) => b - a)
-		.map((e, i, a) => (i !== 0 && e !== (a[i - 1] ?? 0) ? ++count : count))
-		.reduce((a, i) => a + i.toString());
+		.reduce((a, i) => {
+			const t = a;
+			t[i] = (t[i] ?? 0) + 1;
+			return t;
+		}, {});
+	const pattern = Object.keys(count)
+		.map((e) => count[e])
+		.sort((a, b) => b - a);
+	const hand = cardPattern.findIndex((a) =>
+		a.every((b, c) => b === pattern[c])
+	);
 
-	return { hand, draw, bidding };
+	return { hand, draw, bidding: parseInt(bidding) };
 });
 console.log(plays);