Editorial for CPC '21 Contest 1 P0 - AQT and Alphabet

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Submitting an official solution before solving the problem yourself is a bannable offence.

Author: Plasmatic

One way to solve this problem is to loop through all the letters from a to z, and check if any of them are not contained within the string S. Once we find a letter, we will break from the loop and output it.

As we are looping in alphabetical order, this guarantees that the first letter we find will be the lowest alphabetically.


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