advent-of-code

Entries to advent of code, multiple years
git clone git://git.finwo.net/misc/advent-of-code
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part-01.ts (849B)

      1 import { lineByLine } from './line-by-line';
      2 
      3 let lastDepth      = null;
      4 let increasedTotal = 0;
      5 
      6 let texts = [
      7   'decreased',
      8   'no change',
      9   'increased',
     10 ];
     11 
     12 (async () => {
     13 
     14   await lineByLine(__dirname + '/input', line => {
     15     if ((!line) || isNaN(line)) return;
     16 
     17     const depth = parseInt(line);
     18     if (null === lastDepth) {
     19       process.stdout.write(`${depth} (N/A - no previous measurement)\n`);
     20     } else {
     21       const increased = (depth > lastDepth) | 0;
     22       const decreased = (depth < lastDepth) | 0;
     23       increasedTotal += increased;
     24 
     25       process.stdout.write(`${depth} (${texts[1 + increased - decreased]})\n`);
     26     }
     27     lastDepth = depth;
     28   });
     29 
     30   process.stdout.write('\n\n');
     31   process.stdout.write('---[ REPORT ]---\n');
     32   process.stdout.write(`Increased ${increasedTotal} times\n`);
     33   process.stdout.write('\n');
     34 
     35 })();
     36