Radiation-hardened Quine: A quine that works after any one character is deleted
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Submission timeline
2007–2026One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.
First comments on top threads
HN comment orderThis comes from the same dev known for the 128-language quine relay, where each of the 128 languages prints a program in the next one, looping all the way to the original one. In alphabetical order and as ASCII art, no less. https://github.com/mame/quine-relay
I was curious how well this quine would withstand having more than one character removed, so I performed a test. I did 1000 iterations removing 2 characters each time, then 1000 more removing 3 characters each time, and so on. Here are the results up to 23 removals: http://i.imgur.com/PwWN7Z7.png
Some interesting discussion from when this was first posted in 2014: https://news.ycombinator.com/item?id=7276976
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
- Breakout years
- 2
- Total points
- 680
- Total comments
- 200
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking
Every submission
| Date | Title as submitted | By | Points | Comments |
|---|---|---|---|---|
| 2014-02-21 | Radiation-hardened quineFirst breakout | epsylon | 231 | 71 |
| 2019-01-06 | Radiation-hardened quine (2014) | warent | 85 | 22 |
| 2022-10-06 | A Program that will Always regenerate Itself, no matter which char you remove | sirnicolaz | 4 | 0 |
| 2023-06-02 | Radiation-hardened Quine: A quine that works after any one character is deletedBest thread · Latest 20+ point return | sirnicolaz | 360 | 107 |