State the approximate worst-case running time for each of the following. Appropriate answers are of the form “constant time” or “X in Y”, where X might be “linear,” “quadratic,” or the like, and Y is the name of the variable or quantity in question. For example, a traversal of an array is linear in the length of the array; if the array is named a, it is linear in a.length. (a) (3 points) HashMap.size (b) (3 points) ArrayList.indexOf (c) (4 points) int crossProductIsh(int[] a) { int sum = 0; for (int i = 0; i < a.length; i++) { for (int j = 0; j < a.length; j++) { sum += a[i] + a[j]; } } return sum; }

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A: The C code is given below with code and output screenshots Happy Coding ?

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