check each number with the preceding one
This seems to imply a sort-based approach was expected. But sort has the time complexity O(n log n) whereas your linear scan is O(n).

It's not uncommon to have TA-s generate teaching problems from random solutions, inadvertently ending up with a few non-solvable ones in the mix. And then, some teachers take it poorly when a student outsmarts them.

In reply to Re: add missing elements and remove duplicates....and some more questions. by Anonymous Monk
in thread add missing elements and remove duplicates....and some more questions. by pritesh_ugrankar

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