I am not getting what we have to do in this question

#1

Please give me some hints so that i can solve this question

#2

in this question you have given a hash function which give you a integer corresponding to an array
using its algorithm mentioned in question

but the problem is it’s algorithm has high time complexity

now you have to code a algorithm with less time complexity
first observe the pattern and then code the algorithm

for reference purpose you can take help from code below

Reference Code

#3

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