Timeline for Is this Tic-Tac-Toe board valid?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| May 17, 2017 at 20:13 | history | edited | ixodesbeta | CC BY-SA 3.0 |
improved clarity
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| Dec 16, 2016 at 4:40 | history | edited | ixodesbeta | CC BY-SA 3.0 |
incorporated suggested improvements
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| Dec 15, 2016 at 8:35 | comment | added | Jonathan Carroll |
Better yet; x=scan();if(sum(x)%in%4:5,all(apply(combn(which(x==(sum(x)<5)),3),2,sum)!=15),F) and input as 1 and 0. 82 bytes.
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| Dec 15, 2016 at 8:29 | comment | added | Jonathan Carroll |
Save 2 bytes if you use if() instead: f=function(x)if(sum(x)%in%4:5,all(apply(combn(which(x==(sum(x)<5)),3),2,sum)!=15),F). Not extensively tested mind you. Backticks ruin code, but it's backtick if backtick(.
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| Dec 14, 2016 at 0:12 | history | edited | ixodesbeta | CC BY-SA 3.0 |
missing a few words
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| Dec 13, 2016 at 22:06 | review | First posts | |||
| Dec 13, 2016 at 22:08 | |||||
| Dec 13, 2016 at 22:03 | history | answered | ixodesbeta | CC BY-SA 3.0 |