Stored procedures: A procedure is a collection of procedural and SQL statements. A procedure may have input parameter, output parameter and both parameters. It has a declared with a unique named with a unit of procedural code using the proprietary RDBMS and it is invoked by a host language library routine. Syntax for stored procedure: CREATE FUNCTION fun_name(argument IN data-type)RETRUN data-type[IS] BEGIN PL/SQL statements; Return (value or expression); END;

Question

Design a dynamic programming algorithm for the Longest Alternating Subsequence problem described below: Input: A sequence of n integers Output: The length of the longest subsequence where the numbers alternate between being larger and smaller than their predecessor The algorithm must take O(n²) time. You must also write and explain the recurrence. Example 1: Input: [3, 5, 4, 1, 3, 6, 5, 7, 3, 4] Output: 8 ([3, 5, 4, 6, 5, 7, 3, 4]) Example 2: Input: [4,7,2,5,8, 3, 8, 0, 4, 7, 8] Output: 8 ([4, 7, 2, 5, 3, 8, 0,4]) (Take your time with this for the subproblem for this one)

Answer 1

Question

Chapter 8, Problem 7SCG

Program Plan Intro

Stored procedures:

A procedure is a collection of procedural and SQL statements.

A procedure may have input parameter, output parameter and both parameters.

It has a declared with a unique named with a unit of procedural code using the proprietary RDBMS and it is invoked by a host language library routine.

Syntax for stored procedure:

CREATE FUNCTION fun_name(argument IN data-type)RETRUN data-type[IS]

BEGIN

PL/SQL statements;

Return (value or expression);

END;

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Design a dynamic programming algorithm for the Longest Alternating Subsequence problem described below: Input: A sequence of n integers Output: The length of the longest subsequence where the numbers alternate between being larger and smaller than their predecessor The algorithm must take O(n²) time. You must also write and explain the recurrence. Example 1: Input: [3, 5, 4, 1, 3, 6, 5, 7, 3, 4] Output: 8 ([3, 5, 4, 6, 5, 7, 3, 4]) Example 2: Input: [4,7,2,5,8, 3, 8, 0, 4, 7, 8] Output: 8 ([4, 7, 2, 5, 3, 8, 0,4]) (Take your time with this for the subproblem for this one)

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