Remo Senekowitsch 02a877c00c
Change story of exercise async1
- Remove confusing use of atomics. Use return values of async tasks
  instead, to ensure all tasks are awaited.
- Remove use of `println!()`, which uses a global lock and cannot be
  executed in parallel.
2026-05-16 13:06:15 +02:00
..
2026-05-16 13:06:15 +02:00