Timeline for Is this number an integer power of -2?
Current License: CC BY-SA 3.0
6 events
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| Jun 17, 2020 at 9:04 | history | edited | CommunityBot |
Commonmark migration
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| Apr 7, 2017 at 14:51 | comment | added | Olivier Grégoire | Nicely spotted! | |
| Apr 7, 2017 at 14:40 | comment | added | Kevin Cruijssen |
@OlivierGrégoire Unfortunately that one doesn't work for n=0 in Java, because 0%-2==0 will be true and 0/-2 is still 0, causing an infinite loop, which is why I added the n==0?0>1 part to my recursive method.
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| Apr 7, 2017 at 14:14 | comment | added | Olivier Grégoire |
The non-recursive way is shorter by 5 bytes: boolean c(int n){while(0==n%-2)n/=-2;return 1==n;}.
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| Apr 6, 2017 at 14:20 | history | edited | Kevin Cruijssen | CC BY-SA 3.0 |
added 1088 characters in body
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| Apr 6, 2017 at 14:13 | history | answered | Kevin Cruijssen | CC BY-SA 3.0 |