Function add

test/compute-engine/solve-diophantine.test.ts:468–471

(tr: [number, number, number])

    // triple: |t| ≤ 25, |t₁|,|t₂| ≤ 5. Collect only in-window triples.
    const gen = new Set<string>();
    const add = (tr: [number, number, number]) => {
      if (Math.abs(tr[0]) <= B && Math.abs(tr[1]) <= B && Math.abs(tr[2]) <= B)
        gen.add(`${tr[0]},${tr[1]},${tr[2]}`);
    };
    for (let t = -B; t <= B; t++)
      for (let t1 = -5; t1 <= 5; t1++)
        for (let t2 = -5; t2 <= 5; t2++) {