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Appreciate this.Thanks
Can u plz elaborate on what is done with the negative numbers>
Why do we need to sort?
you don't need to sort. Just check for every element x in the array if either x/2 or x is in the hashmap, if not return false
Please get a less noisy keyboard! :)
Appreciate this.
Thanks
Can u plz elaborate on what is done with the negative numbers>
Why do we need to sort?
you don't need to sort. Just check for every element x in the array if either x/2 or x is in the hashmap, if not return false
Please get a less noisy keyboard! :)