Re: Alternate signs in a range

[matovitch]

On Sunday, 26 January 2014 at 14:13:28 UTC, Stanislav Blinov 
wrote:
On Sunday, 26 January 2014 at 13:45:32 UTC, matovitch wrote:
Anyway, the proposed solutions use twice much memory than a 
simple for loop...

???


Well in a for loop, you only need one more index variable whereas 
here we store the whole index range.