Timeline for Blackboard cleaning
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 28, 2016 at 14:16 | audit | Close votes | |||
| Feb 28, 2016 at 14:17 | |||||
| Nov 20, 2015 at 17:02 | vote | accept | Haobin | ||
| Nov 15, 2015 at 9:16 | comment | added | Andrew Savinykh | When you subtract and get 0, you wipe the number from the blackboard. Presumably, if you subtract and DO NOT get 0, you substitute the old number on the board with the difference. But that's not said in the question so one could assume, that if you do not get 0 the number on the blackboard stays as it is. Perhaps the question can be improved to clarify that. | |
| Nov 13, 2015 at 19:33 | answer | added | Mike Earnest | timeline score: 26 | |
| Nov 13, 2015 at 18:44 | answer | added | Dr Xorile | timeline score: 23 | |
| Nov 13, 2015 at 18:39 | comment | added | Raystafarian | Are we told that it's not a valid choice because it will create a negative number? Or is that just a lose condition? Or we won't do that because we can see the numbers? | |
| Nov 13, 2015 at 18:30 | history | asked | Haobin | CC BY-SA 3.0 |