Question: (1) Write the pseudocode for searching a key K in an array A(n), using a sentinel. Show the best, worst and average cases. (2) Write

(1) Write the pseudocode for searching a key K in an array A(n), using a sentinel. Show the best, worst and average cases.

(2) Write a recursive pseudocode to calculate n!, as fac(n). Write the recurrence for the running time in terms of the number of multiplications and solve the recursion.

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