MAXMEX - Editorial

editorial
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21

yeah, nor they mentioned that multiple occurences are possible, I am not supposed to keep looking up in the comment section for clarification.

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22

smallest positive integer which does not occur among the chosen elements

We are choosing a particular subset from the given set and checking MEX for that subset

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23

Sorry, it was a typing mistake.

24

Even I made the same mistake :frowning:

25

They give two statements themselves
Editorial : MEX of a sequence is the smallest positive integer not present in the sequence.
Problem: MEX, i.e. the smallest positive integer which does not occur among the chosen elements.
These two statement are not similiar
@taran_1407

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26

The answer in this case is -1.

27

MEX of a sequence is the smallest positive integer not present in the sequence.
So in subsequence {4,5,6,7,9,10} it will be 1 as 1 is the smallest positive number not present in the subsequence.

28

Please explain your approach. Did you consider multiple occurence of integers?

29

I think the problem statement could have been made a little more clear with 1 or 2 more input-output examples.

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30

How though?

31

I made the same incorrect assumption and ended up solving only one question :’(

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32

Unless specified that array elements are unique, you ought to assume that only.

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33

You are right bro

34

MEX, i.e. the smallest positive integer which does not occur among the chosen elements

M=3
Given set = {1, 2, 4}
Acc to answer chosen set is {1, 2, 3}. So the elements which donot occur among the chosen elements are : NULL
Smallest among NULL is 3? Please explain

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35

When you are using the word among the elements , it signify that you are using some lower and upper bound

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36

made the same assumption :pensive:

37

Because

Editorial : MEX of a sequence is the smallest positive integer not present in the sequence.
Problem: MEX, i.e. the smallest positive integer which does not occur among the chosen elements.

chosen elements is a subset of sequence

38

Yeah, but which elements you chose depends on you.

39

Subsequence is also a sequence. Isn’t it?

41

even I thought that we need to pick elements on our own from the sequence. :disappointed: and I think someone in the comments even said that it’s okay to pick it :sob:

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