Need editorial/approaches to Challenge problem of this long.

Arent there any editorials for challenge problems of long challenge?
If any1 could answer it here itself plz tell.

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Hi @vivek_1998299 ,

You can get the editorial for NOV17 challenge problem here:

And here you can get a general approach to the challenge problems:

Hope this helps!

PS: I could not find any editorial of this, i.e. DEC17 long.

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thanx mate!!

I wished if editorial for all problems were published at once.

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