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www.mikescher.com/www/statics/aoc/2019/19_solution-2.ts

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2019-12-24 13:34:32 +01:00
namespace AdventOfCode2019_19_2
{
const DAY = 19;
const PROBLEM = 2;
export async function run()
{
let input = await AdventOfCode.getInput(DAY);
if (input == null) return;
AdventOfCode.setIntermedOutputSize("0.4vw");
const code = input.trim().split(",").map(p => parseInt(p.trim()));
const RECT_LEN = 100;
let grid: {[_:number]: boolean} = {};
let lout = [];
for(let y=0; y<10; y++)
{
let out = "";
for(let x=0; x<50; x++)
{
let rnr = new Interpreter(code, [x, y]); rnr.fullRun();
if (rnr.output[0] === 0) out += " ";
else if (rnr.output[0] === 1) out += "#";
}
out = out.trimEnd();
out = out.replace(/ /g, ".");
lout.push(out);
}
let xstart = 0;
for(let y=10;; y++)
{
let out = "";
let xsum = 0;
for(let x=xstart;; x++)
{
let rnr = new Interpreter(code, [x, y]);
rnr.fullRun();
if (rnr.output[0] === 0)
{
if (xsum===0)xstart=x;
out += ".";
grid[y*100000+x]=false;
}
else if (rnr.output[0] === 1)
{
out += "#";
xsum += 1;
grid[y*100000+x]=true;
if (xsum>=RECT_LEN)
{
const ibr = (y)*100000+(x);
const ibl = (y)*100000+(x-RECT_LEN+1);
const itr = (y-RECT_LEN+1)*100000+(x);
const itl = (y-RECT_LEN+1)*100000+(x-RECT_LEN+1);
const br = ibr in grid && grid[ibr];
const bl = ibl in grid && grid[ibl];
const tr = itr in grid && grid[itr];
const tl = itl in grid && grid[itl];
if (br && bl && tr && tl)
{
lout.push(out);
if (lout.length>128) lout.shift();
await AdventOfCode.outputIntermed(lout.join("\n"));
AdventOfCode.outputConsole(`[${x-RECT_LEN+1}|${y-RECT_LEN+1}]`);
AdventOfCode.outputConsole(`[${x}|${y-RECT_LEN+1}]`);
AdventOfCode.outputConsole(`[${x-RECT_LEN+1}|${y}]`);
AdventOfCode.outputConsole(`[${x}|${y}]`);
//let fstr = "";
//for (let yy=0; yy<=y+1; yy++)
//{
// for (let xx=0; xx<=x+1; xx++)
// {
// let iidd = yy*100000+xx;
// let trac = iidd in grid && grid[iidd];
// let ship = (xx >= (x-RECT_LEN+1)) &&
// (xx <= (x)) &&
// (yy >= (y-RECT_LEN+1)) &&
// (yy <= (y));
// if (!trac) fstr += ".";
// else if (ship) fstr += "O";
// else fstr += "#";
// }
// fstr += "\n";
//}
//AdventOfCode.outputConsole(fstr);
AdventOfCode.output(DAY, PROBLEM, ((x-RECT_LEN+1)*10000 + (y-RECT_LEN+1)).toString());
return;
}
}
}
//await AdventOfCode.outputIntermed(out);
if (xsum>0 && rnr.output[0] === 0) break;
}
lout.push(out);
if (lout.length>100) lout.shift();
await AdventOfCode.outputIntermed(lout.join("\n"));
}
}
class Interpreter
{
program: InfMem;
inputqueue: number[];
instructionpointer: number;
output: number[];
relative_base: number;
is_halted: boolean = false;
constructor(prog: number[], input: number[])
{
this.program = new InfMem(prog);
this.inputqueue = input;
this.instructionpointer = 0;
this.output = [];
this.relative_base = 0;
}
fullRun() : number[]
{
while(!this.is_halted)
{
const r = this.singleStep();
if (r === StepResult.EXECUTED) continue;
if (r === StepResult.HALTED) return this.output;
if (r === StepResult.WAITING_FOR_IN) throw "not enough input";
throw "unknown output of singleStep";
}
return this.output;
}
autoRun() : StepResult
{
while(!this.is_halted)
{
const r = this.singleStep();
if (r === StepResult.EXECUTED) continue;
if (r === StepResult.HALTED) return StepResult.HALTED;
if (r === StepResult.WAITING_FOR_IN) return StepResult.WAITING_FOR_IN;
throw "unknown output of singleStep";
}
return StepResult.HALTED;
}
singleStep() : StepResult
{
const cmd = new Op(this.program.r(this.instructionpointer));
if (cmd.opcode == OpCode.ADD)
{
const p0 = cmd.getParameter(this, 0);
const p1 = cmd.getParameter(this, 1);
const pv = p0 + p1;
cmd.setParameter(this, 2, pv);
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.MUL)
{
const p0 = cmd.getParameter(this, 0);
const p1 = cmd.getParameter(this, 1);
const pv = p0 * p1;
cmd.setParameter(this, 2, pv);
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.HALT)
{
this.is_halted = true;
return StepResult.HALTED;
}
else if (cmd.opcode == OpCode.IN)
{
if (this.inputqueue.length == 0) return StepResult.WAITING_FOR_IN;
const pv = this.inputqueue[0];
cmd.setParameter(this, 0, pv);
this.inputqueue = this.inputqueue.slice(1);
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.OUT)
{
const p0 = cmd.getParameter(this, 0);
this.output.push(p0);
//AdventOfCode.outputConsole("# " + p0);
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.TJMP)
{
const p0 = cmd.getParameter(this, 0);
if (p0 != 0) this.instructionpointer = cmd.getParameter(this, 1);
else this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.FJMP)
{
const p0 = cmd.getParameter(this, 0);
if (p0 == 0) this.instructionpointer = cmd.getParameter(this, 1);
else this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.LT)
{
const p0 = cmd.getParameter(this, 0);
const p1 = cmd.getParameter(this, 1);
const pv = p0 < p1 ? 1 : 0;
cmd.setParameter(this, 2, pv);
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.EQ)
{
const p0 = cmd.getParameter(this, 0);
const p1 = cmd.getParameter(this, 1);
const pv = p0 == p1 ? 1 : 0;
cmd.setParameter(this, 2, pv);
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else if (cmd.opcode == OpCode.ARB)
{
const p0 = cmd.getParameter(this, 0);
this.relative_base = this.relative_base+p0;
this.incInstrPtr(cmd);
return StepResult.EXECUTED;
}
else throw "Unknown Op: " + cmd.opcode + " @ " + this.instructionpointer;
}
private incInstrPtr(cmd: Op)
{
this.instructionpointer += 1 + cmd.parametercount;
}
}
enum StepResult { EXECUTED, HALTED, WAITING_FOR_IN }
enum OpCode
{
ADD = 1,
MUL = 2,
IN = 3,
OUT = 4,
TJMP = 5,
FJMP = 6,
LT = 7,
EQ = 8,
ARB = 9,
HALT = 99,
}
enum ParamMode
{
POSITION_MODE = 0,
IMMEDIATE_MODE = 1,
RELATIVE_MODE = 2,
}
class Op
{
opcode: OpCode;
modes: ParamMode[];
name: string;
parametercount: number;
constructor(v: number)
{
this.opcode = v%100;
v = Math.floor(v/100);
this.modes = [];
for(let i=0; i<4; i++)
{
this.modes.push(v%10);
v = Math.floor(v/10);
}
if (this.opcode == OpCode.ADD) { this.name="ADD"; this.parametercount=3; }
else if (this.opcode == OpCode.MUL) { this.name="MUL"; this.parametercount=3; }
else if (this.opcode == OpCode.HALT) { this.name="HALT"; this.parametercount=0; }
else if (this.opcode == OpCode.IN) { this.name="IN"; this.parametercount=1; }
else if (this.opcode == OpCode.OUT) { this.name="OUT"; this.parametercount=1; }
else if (this.opcode == OpCode.TJMP) { this.name="TJMP"; this.parametercount=2; }
else if (this.opcode == OpCode.FJMP) { this.name="FJMP"; this.parametercount=2; }
else if (this.opcode == OpCode.LT) { this.name="LT"; this.parametercount=3; }
else if (this.opcode == OpCode.EQ) { this.name="EQ"; this.parametercount=3; }
else if (this.opcode == OpCode.ARB) { this.name="ARB"; this.parametercount=1; }
else throw "Unknown opcode: "+this.opcode;
}
getParameter(proc: Interpreter, index: number): number
{
const prog = proc.program;
const ip = proc.instructionpointer;
let p = prog.r(ip+1+index);
if (this.modes[index] == ParamMode.POSITION_MODE) p = prog.r(p);
else if (this.modes[index] == ParamMode.IMMEDIATE_MODE) p = p;
else if (this.modes[index] == ParamMode.RELATIVE_MODE) p = prog.r(proc.relative_base+p);
else throw "Unknown ParamMode: "+this.modes[index];
return p;
}
setParameter(proc: Interpreter, index: number, value: number): void
{
const prog = proc.program;
const ip = proc.instructionpointer;
let p = prog.r(ip+1+index);
if (this.modes[index] == ParamMode.POSITION_MODE) prog.w(p, value);
else if (this.modes[index] == ParamMode.IMMEDIATE_MODE) throw "Immediate mode not allowed in write";
else if (this.modes[index] == ParamMode.RELATIVE_MODE) prog.w(proc.relative_base+p, value);
else throw "Unknown ParamMode: "+this.modes[index];
}
}
class InfMem
{
private data: { [_:number]:number } = {};
constructor(v: number[])
{
for(let i=0; i<v.length;i++) this.data[i]=v[i];
}
r(pos: number): number
{
if (!(pos in this.data)) this.data[pos] = 0;
return this.data[pos];
}
w(pos: number, val: number): number
{
return this.data[pos] = val;
}
}
}