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www.mikescher.com/www/statics/aoc/2019/04_solution-2.ts

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2019-12-05 10:55:51 +01:00
namespace AdventOfCode2019_04_2
{
const DAY = 4;
const PROBLEM = 2;
export async function run()
{
let input = await AdventOfCode.getInput(DAY);
if (input == null) return;
const min = parseInt(input.split('-')[0]);
const max = parseInt(input.split('-')[1]);
let rcount = 0;
for(let d0=0; d0<=9; d0++)
{
const v0 = d0 * 100000
if (v0+99999 <= min) continue;
if (v0 >= max) continue;
for(let d1=d0; d1<=9; d1++)
{
const v1 = v0 + d1 * 10000;
if (v1+9999 <= min) continue;
if (v1 >= max) continue;
for(let d2=d1; d2<=9; d2++)
{
const v2 = v1 + d2 * 1000;
if (v2+999 <= min) continue;
if (v2 >= max) continue;
for(let d3=d2; d3<=9; d3++)
{
const v3 = v2 + d3 * 100;
if (v3+99 <= min) continue;
if (v3 >= max) continue;
for(let d4=d3; d4<=9; d4++)
{
const v4 = v3 + d4 * 10;
if (v4+9 <= min) continue;
if (v4 >= max) continue;
for(let d5=d4; d5<=9; d5++)
{
const v5 = v4 + d5 * 1;
if (v5 <= min) continue;
if (v5 >= max) continue;
if (!eq(d0, d1, d2, d3, d4, d5)) continue;
rcount++;
console.log(v5);
}
}
}
}
}
}
AdventOfCode.output(DAY, PROBLEM, rcount.toString());
}
function eq(a:number, b: number, c: number, d: number, e: number, f: number): boolean
{
if ( a==b && b!=c) return true;
if (a!=b && b==c && c!=d) return true;
if (b!=c && c==d && d!=e) return true;
if (c!=d && d==e && e!=f) return true;
if (d!=e && e==f ) return true;
return false;
}
}