Question: Given the implementation of Intset seen in class, augment it with the following methods: 1) def filter(p: Int=> Boolean): IntSet Hint: start by defining the

Given the implementation of Intset seen in class, augment it with the following methods: 1) def filter(p: Int=> Boolean): IntSet Hint: start by defining the helper method filterAcc which takes an accumulator set as a second argument. This accumulator contains the ongoing result of the filtering. def filterAcc (p: Int -Boolean, acc: IntSet) IntSet Using the method remove with the following implementations: 2) de f remove (1: Int): IntSet = this // for Empty IntSet de f remove (i: Int): IntSet = // for NonEmpty IntSet if (i Boolean): IntSet Hint: start by defining the helper method filterAcc which takes an accumulator set as a second argument. This accumulator contains the ongoing result of the filtering. def filterAcc (p: Int -Boolean, acc: IntSet) IntSet Using the method remove with the following implementations: 2) de f remove (1: Int): IntSet = this // for Empty IntSet de f remove (i: Int): IntSet = // for NonEmpty IntSet if (i

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