re: Java Daily Coding Problem #001 VIEW POST

FULL DISCUSSION
 

I would even check, if the outer number is greater equal than the number k. Thus we could even skip some for loops.

 

This sounds reasonable to me but note that the problem doesn't state whether the numbers in the array can be negative!

If I got this question in a coding interview, I'm not sure I would make that assumption.

 

I was actually thinking more in the line of:
Let n={3,5,10,15,17} and k=13. 15 and 17 should not be considered at all since they are greater.
The numbers are not supposed to be negative. The worst case remains the same.
But if n is meant to be sorted, we can then only check the left side of n up to the very closest number to k, which is still less than k. That would change the approach in general, I would think.

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