Please answer all parts

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Part 2:

Part 3:

Part 4:

Part 5:

We are coding a structure called "SuperStructure" and a method called "fun". The size (number of elements) is obtained via "this.size()". Assume "this.get(index)" is O(1) and returns an integer The "fun" Algorithm: fun ( ){ let sz= this.size () ; let sum =0; //loop \#1 for (let i=0;i