Length of m issue

#1

in the given question will length of m always equal to j-i+1 or it can be greater or less than the that.if in case the latter is the case how to do the question?

#2

give an example for both the latter cases

#3

also tell what is the time complexity of the function?

#4

the length is j-i+1.
Time complexity:O(1)

#5

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