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4. Stare angrily at the pseudocode shown below, and then answer the following questions. 1 // Uses zero-based indexing. 2 Foo (vala): If vals.length -

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4. Stare angrily at the pseudocode shown below, and then answer the following questions. 1 // Uses zero-based indexing. 2 Foo (vala): If vals.length - 11 Return vala (0) inputx - Vals (o: (N/4)) // first fourth of array inputy - Vala [(3/4) ond) // last fourth of array X-Foo (input) Y- Foo (input Y) 13 Result X Y For i in input X: Result - Result + 1 15 Return Result (a) Write the recurrence 7(n) for the worst-case time complexity of the above function. You may omit the base case. Ignore floors and ceilings. (b) Use the recursion-tree method to give a big-O for this recurrence T(n). (e) Use the master method to give a big-e for this recurrence T(n)

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