502 lines
12 KiB
TypeScript
502 lines
12 KiB
TypeScript
namespace AdventOfCode2019_25_1
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{
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const DAY = 25;
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const PROBLEM = 1;
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export async function run()
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{
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let input = await AdventOfCode.getInput(DAY);
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if (input == null) return;
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//await runInteractive(input);
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await runAuto(input);
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}
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async function runAuto(input: string)
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{
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const code = input.trim().split(",").map(p => parseInt(p.trim()));
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let visited = new Set<string>();
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let work: [number, Direction[]][] = [];
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work.push([0, []]);
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let rooms: Room[] = [];
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let dest: Room = new Room(); dest.name = "Floor"; dest.path = [Direction.S, Direction.S, Direction.S, Direction.E, Direction.S, Direction.E];
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let items: {[_:string]:Room} = {};
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let allitems = [];
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while (work.length > 0)
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{
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let workitem = work.pop()!;
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let room = getRoom(code, workitem[1]);
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if (visited.has(room.name)) continue;
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visited.add(room.name);
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rooms.push(room);
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AdventOfCode.outputConsole(`${room.name} => ${room.path.map(p => dir_to_short_str(p)).join("")}`);
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if (room.object !== null)
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{
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items[room.object] = room;
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allitems.push(room.object);
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}
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for (const d of room.doors)
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{
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let p2 = Object.assign([], room.path);
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p2.push(d);
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work.push([ workitem[0]+1, p2 ]);
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}
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}
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for (let bmap = 0; bmap < Math.pow(2, allitems.length); bmap++)
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{
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let packeditems = allitems.filter((v,i,a) => ( bmap & Math.pow(2, i) ) !== 0 );
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let destrooms = packeditems.map(p => items[p]);
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let fullpath = [];
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for (const destroomm of destrooms)
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{
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for (const d of destroomm.path) fullpath.push(dir_to_str(d)+"\n");
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fullpath.push("take "+destroomm.object+"\n");
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for (const d of destroomm.path.slice().reverse()) fullpath.push(dir_to_str_inv(d)+"\n");
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}
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fullpath.push("inv\n");
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for (const d of dest.path) fullpath.push(dir_to_str(d)+"\n");
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let rnr = new Interpreter(code, fullpath.flatMap(p => p.split("").map(q => q.charCodeAt(0))));
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rnr.autoRun();
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let strout = rnr.output.map(p => String.fromCharCode(p)).join("");
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await AdventOfCode.outputIntermed("Inv: [" + packeditems.join(" ++ ") + "]\n" + fullpath.join("") + "\n\n" + strout);
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//await AdventOfCode.sleep(10*1000);
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if (strout.indexOf("You can't go that way.") > 0)
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{
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AdventOfCode.output(DAY, PROBLEM, "ERROR");
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return; // error
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}
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if (strout.indexOf("A loud, robotic voice says \"Alert! ") > 0) continue;
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if (strout.indexOf("It is suddenly completely dark! You are eaten by a Grue!") > 0) continue;
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if (strout.indexOf("You're launched into space! Bye!") > 0) continue;
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if (strout.indexOf("Oh, hello! You should be able to get in by typing") > 0)
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{
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let lastline = strout.trim().split(new RegExp('\r?\n')).slice().reverse()[0];
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let r = lastline.substring(lastline.indexOf("typing")+"typing".length).trim().split(" ")[0];
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AdventOfCode.output(DAY, PROBLEM, r.trim());
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return;
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}
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AdventOfCode.output(DAY, PROBLEM, "ERROR");
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return; // error
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}
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}
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class Room
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{
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name: string = "";
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doors: Direction[] = [];
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object: string|null = null;
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path: Direction[] = [];
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}
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enum Direction { N, E, S, W }
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function getRoom(code: number[], dirs: Direction[]): Room
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{
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let rnr = new Interpreter(code, dirs.map(p => dir_to_str(p) + "\n").join("").split("").map(p => p.charCodeAt(0)));
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rnr.autoRun();
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let lines = rnr.output
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.map(p => String.fromCharCode(p))
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.join("")
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.split(new RegExp('\r?\n'))
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.reverse();
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let r_dir: Direction[] = [];
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let r_obj: string|null = null;
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for(let lin of lines)
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{
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if (lin === "Command?") continue;
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if (lin === "") continue;
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if (lin.startsWith("- "))
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{
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let obj = lin.substring(2);
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if (obj === "north") r_dir.push(Direction.N);
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else if (obj === "east") r_dir.push(Direction.E);
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else if (obj === "south") r_dir.push(Direction.S);
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else if (obj === "west") r_dir.push(Direction.W);
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else r_obj = obj;
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continue;
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}
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if (lin.startsWith("== "))
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{
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let name = lin.substring(3, lin.length-3);
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let r = new Room();
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r.doors = r_dir;
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r.name = name;
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r.object = r_obj;
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r.path = dirs;
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return r;
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}
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}
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throw "EOD";
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}
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function dir_to_str(d: Direction): string
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{
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if (d === Direction.N) return "north";
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if (d === Direction.E) return "east";
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if (d === Direction.S) return "south";
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if (d === Direction.W) return "west";
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throw d;
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}
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function dir_to_str_inv(d: Direction): string
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{
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if (d === Direction.N) return "south";
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if (d === Direction.E) return "west";
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if (d === Direction.S) return "north";
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if (d === Direction.W) return "east";
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throw d;
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}
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function dir_to_short_str(d: Direction): string
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{
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if (d === Direction.N) return "N";
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if (d === Direction.E) return "E";
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if (d === Direction.S) return "S";
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if (d === Direction.W) return "W";
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throw d;
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}
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async function runInteractive(input: string)
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{
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AdventOfCode.showIntermedInput(true);
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const code = input.trim().split(",").map(p => parseInt(p.trim()));
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let rnr = new Interpreter(code, []);
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let last_out = "";
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for(;;)
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{
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rnr.autoRun();
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let xout = rnr.output
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.map(p => String.fromCharCode(p))
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.join("")
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.split(new RegExp('\r?\n'))
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.reverse()
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.filter((v,i,a) => i<60)
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.reverse()
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.join('\n');
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if (last_out !== xout)
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{
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last_out = xout;
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await AdventOfCode.outputIntermed(xout);
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}
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else
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{
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await AdventOfCode.sleep(0);
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}
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if (AdventOfCode.isLastInputEnter() && rnr.inputqueue.length === 0)
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{
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let cmd = AdventOfCode.getAndClearInput();
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rnr.inputqueue = cmd.split("").map(p => p.charCodeAt(0));
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rnr.inputqueue.push(10);
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}
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}
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}
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class Interpreter
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{
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program: InfMem;
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inputqueue: number[];
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instructionpointer: number;
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output: number[];
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relative_base: number;
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blocking_io: boolean;
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is_halted: boolean = false;
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last_io_success: boolean = true;
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constructor(prog: number[], input: number[])
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{
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this.program = new InfMem(prog);
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this.inputqueue = input;
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this.instructionpointer = 0;
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this.output = [];
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this.relative_base = 0;
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this.blocking_io = true;
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}
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fullRun() : number[]
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{
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while(!this.is_halted)
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{
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const r = this.singleStep();
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if (r === StepResult.EXECUTED) continue;
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if (r === StepResult.HALTED) return this.output;
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if (r === StepResult.WAITING_FOR_IN) throw "not enough input";
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throw "unknown output of singleStep";
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}
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return this.output;
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}
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autoRun() : StepResult
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{
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while(!this.is_halted)
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{
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const r = this.singleStep();
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if (r === StepResult.EXECUTED) continue;
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if (r === StepResult.HALTED) return StepResult.HALTED;
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if (r === StepResult.WAITING_FOR_IN) return StepResult.WAITING_FOR_IN;
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throw "unknown output of singleStep";
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}
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return StepResult.HALTED;
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}
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singleStep() : StepResult
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{
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const cmd = new Op(this.program.r(this.instructionpointer));
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if (cmd.opcode == OpCode.ADD)
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{
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const p0 = cmd.getParameter(this, 0);
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const p1 = cmd.getParameter(this, 1);
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const pv = p0 + p1;
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cmd.setParameter(this, 2, pv);
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this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.MUL)
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{
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const p0 = cmd.getParameter(this, 0);
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const p1 = cmd.getParameter(this, 1);
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const pv = p0 * p1;
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cmd.setParameter(this, 2, pv);
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this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.HALT)
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{
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this.is_halted = true;
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return StepResult.HALTED;
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}
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else if (cmd.opcode == OpCode.IN)
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{
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if (this.inputqueue.length == 0)
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{
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if (this.blocking_io) return StepResult.WAITING_FOR_IN;
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cmd.setParameter(this, 0, -1);
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this.incInstrPtr(cmd);
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this.last_io_success = false;
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return StepResult.EXECUTED;
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}
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const pv = this.inputqueue[0];
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cmd.setParameter(this, 0, pv);
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this.inputqueue = this.inputqueue.slice(1);
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this.incInstrPtr(cmd);
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this.last_io_success = true;
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.OUT)
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{
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const p0 = cmd.getParameter(this, 0);
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this.output.push(p0);
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//AdventOfCode.outputConsole("# " + p0);
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this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.TJMP)
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{
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const p0 = cmd.getParameter(this, 0);
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if (p0 != 0) this.instructionpointer = cmd.getParameter(this, 1);
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else this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.FJMP)
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{
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const p0 = cmd.getParameter(this, 0);
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if (p0 == 0) this.instructionpointer = cmd.getParameter(this, 1);
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else this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.LT)
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{
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const p0 = cmd.getParameter(this, 0);
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const p1 = cmd.getParameter(this, 1);
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const pv = p0 < p1 ? 1 : 0;
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cmd.setParameter(this, 2, pv);
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this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.EQ)
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{
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const p0 = cmd.getParameter(this, 0);
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const p1 = cmd.getParameter(this, 1);
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const pv = p0 == p1 ? 1 : 0;
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cmd.setParameter(this, 2, pv);
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this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else if (cmd.opcode == OpCode.ARB)
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{
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const p0 = cmd.getParameter(this, 0);
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this.relative_base = this.relative_base+p0;
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this.incInstrPtr(cmd);
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return StepResult.EXECUTED;
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}
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else throw "Unknown Op: " + cmd.opcode + " @ " + this.instructionpointer;
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}
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private incInstrPtr(cmd: Op)
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{
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this.instructionpointer += 1 + cmd.parametercount;
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}
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}
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enum StepResult { EXECUTED, HALTED, WAITING_FOR_IN }
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enum OpCode
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{
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ADD = 1,
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MUL = 2,
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IN = 3,
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OUT = 4,
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TJMP = 5,
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FJMP = 6,
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LT = 7,
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EQ = 8,
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ARB = 9,
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HALT = 99,
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}
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enum ParamMode
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{
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POSITION_MODE = 0,
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IMMEDIATE_MODE = 1,
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RELATIVE_MODE = 2,
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}
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class Op
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{
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opcode: OpCode;
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modes: ParamMode[];
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name: string;
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parametercount: number;
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constructor(v: number)
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{
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this.opcode = v%100;
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v = Math.floor(v/100);
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this.modes = [];
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for(let i=0; i<4; i++)
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{
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this.modes.push(v%10);
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v = Math.floor(v/10);
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}
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if (this.opcode == OpCode.ADD) { this.name="ADD"; this.parametercount=3; }
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else if (this.opcode == OpCode.MUL) { this.name="MUL"; this.parametercount=3; }
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else if (this.opcode == OpCode.HALT) { this.name="HALT"; this.parametercount=0; }
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else if (this.opcode == OpCode.IN) { this.name="IN"; this.parametercount=1; }
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else if (this.opcode == OpCode.OUT) { this.name="OUT"; this.parametercount=1; }
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else if (this.opcode == OpCode.TJMP) { this.name="TJMP"; this.parametercount=2; }
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else if (this.opcode == OpCode.FJMP) { this.name="FJMP"; this.parametercount=2; }
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else if (this.opcode == OpCode.LT) { this.name="LT"; this.parametercount=3; }
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else if (this.opcode == OpCode.EQ) { this.name="EQ"; this.parametercount=3; }
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else if (this.opcode == OpCode.ARB) { this.name="ARB"; this.parametercount=1; }
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else throw "Unknown opcode: "+this.opcode;
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}
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getParameter(proc: Interpreter, index: number): number
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{
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const prog = proc.program;
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const ip = proc.instructionpointer;
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let p = prog.r(ip+1+index);
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if (this.modes[index] == ParamMode.POSITION_MODE) p = prog.r(p);
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else if (this.modes[index] == ParamMode.IMMEDIATE_MODE) p = p;
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else if (this.modes[index] == ParamMode.RELATIVE_MODE) p = prog.r(proc.relative_base+p);
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else throw "Unknown ParamMode: "+this.modes[index];
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return p;
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}
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setParameter(proc: Interpreter, index: number, value: number): void
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{
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const prog = proc.program;
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const ip = proc.instructionpointer;
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let p = prog.r(ip+1+index);
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if (this.modes[index] == ParamMode.POSITION_MODE) prog.w(p, value);
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else if (this.modes[index] == ParamMode.IMMEDIATE_MODE) throw "Immediate mode not allowed in write";
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else if (this.modes[index] == ParamMode.RELATIVE_MODE) prog.w(proc.relative_base+p, value);
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else throw "Unknown ParamMode: "+this.modes[index];
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}
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}
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class InfMem
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{
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private data: { [_:number]:number } = {};
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constructor(v: number[])
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{
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for(let i=0; i<v.length;i++) this.data[i]=v[i];
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}
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r(pos: number): number
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{
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if (!(pos in this.data)) this.data[pos] = 0;
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return this.data[pos];
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}
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w(pos: number, val: number): number
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{
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return this.data[pos] = val;
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}
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}
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}
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