Pick a day ↕ above or below

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For the year 2023:

- Day 1 – the problem and my solution
- Day 2 – the problem and my solution
- Day 3 – the problem and my solution
- Day 4 – the problem and my solution
- Day 5 – the problem and my solution
- Day 6 – the problem and my solution
- Day 7 – the problem and my solution
- Day 8 – the problem and my solution
- Day 9 – the problem and my solution
- Day 10 – the problem and my solution
- Day 11 – the problem and my solution
- Day 12 – the problem and my solution
- Day 13 – the problem and my solution
- Day 14 – the problem and my solution
- Day 15 – the problem and my solution
- Day 17 – the problem and my solution