aoc 17-24

www/statics/aoc/2019/22_solution-1.ts

@@ -0,0 +1,76 @@
+namespace AdventOfCode2019_22_1
+{
+	const DAY     = 22;
+	const PROBLEM = 1;
+
+	export async function run()
+	{
+		let input = await AdventOfCode.getInput(DAY);
+		if (input == null) return;
+
+		const cmds = input
+			.split(new RegExp('\r?\n'))
+			.filter(p => p.trim().length > 0)
+			.map(p => parseLine(p))
+
+		AdventOfCode.setIntermedOutputSize("0.275vw");
+
+		let data = [...Array(10007).keys()];
+
+		for (const cmd of cmds)
+		{
+			if (cmd.type === CmdType.CUT && cmd.param >= 0)
+			{
+				data = [...data.slice(cmd.param), ...data.slice(0, cmd.param)];
+			}
+			else if (cmd.type === CmdType.CUT && cmd.param < 0)
+			{
+				data = [...data.slice(data.length + cmd.param), ...data.slice(0, data.length + cmd.param)];
+			}
+			else if (cmd.type === CmdType.DEAL)
+			{
+				let d2 = Array(data.length);
+				for(let i=0; i<data.length;i++) d2[(i*cmd.param) % data.length] = data[i];
+				data = (cmd.param === 1) ? d2.reverse() : d2;
+			}
+			else throw cmd;
+
+			let str = "";
+			let len = 50;
+			for (let i=0; i<(data.length / len)+1; i++)
+			{
+				str += data.slice(i*len, (i+1)*len).map(p => p.toString().padStart(5, ' ')).join(" ") + "\n";
+			}
+			await AdventOfCode.outputIntermed(str);
+
+			AdventOfCode.outputConsole(data.map(p => p.toString()).join(" "));
+		}
+
+
+        AdventOfCode.output(DAY, PROBLEM, data.indexOf(2019).toString());
+	}
+
+	function parseLine(str: string): Cmd
+	{
+		const m0 = str.match(new RegExp('^cut (-?[0-9]+)$'));
+		if (m0 != null) return new Cmd(CmdType.CUT, parseInt(m0![1]));
+
+		const m1 = str.match(new RegExp('^deal into new stack$'));
+		if (m1 != null) return new Cmd(CmdType.DEAL, 1);
+
+		const m2 = str.match(new RegExp('^deal with increment ([0-9]+)$'));
+		if (m2 != null) return new Cmd(CmdType.DEAL, parseInt(m2![1]));
+
+		throw str;
+	}
+
+	enum CmdType { CUT, DEAL }
+
+	class Cmd
+	{
+		type: CmdType;
+		param: number;
+
+		constructor(t:CmdType, n: number) { this.type=t; this.param=n; }
+	}
+}