Write a function named second-largest in Scheme that takes a list of numbers and uses fold (or reduce) to return the second largest element on the list.You must use either fold or reduce to do the vast majority of the work. (You may do a little pre- and post- processing outside the call to fold.) You may use the built-in fold method by adding the line (require 'list-lib), or you can use your own implementation.The built-in fold function has parameters in this order: action partial-result lst.You may assume that the list contains at least one element.For example,(second-largest '(5)) should return 5(second-largest '(1 3)) should return 1(second-largest '(8 6 7 5 3 0 9)) should return 8 Write a function named second-largest in Scheme that takes a list of numbers and uses fold (or reduce) toreturn the second largest element on the list.You must use either fold or reduce to do the vast majority of the work. (You may do a little pre- and post-processing outside the call to fold.) You may use the built-in fold method by adding the line (require'list-lib), or you can use your own implementation.The built-in fold function has parameters in this order: action partial-result lst.You may assume that the list contains at least one element.For example,(second-largest '(5)) should return 5(second-largest• (second-largest'(1 3)) should return 1(8 6 7 5 3 0 9)) should return 8

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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a function named second-largest in Scheme that takes a list of numbers and uses fold (or reduce) to return the second largest element on the list.

You must use either fold or reduce to do the vast majority of the work. (You may do a little pre- and post- processing outside the call to fold.) You may use the built-in fold method by adding the line (require 'list-lib), or you can use your own implementation.

The built-in fold function has parameters in this order: action partial-result lst.

You may assume that the list contains at least one element.

For example,

(second-largest '(5)) should return 5
(second-largest '(1 3)) should return 1
(second-largest '(8 6 7 5 3 0 9)) should return 8

Write a function named second-largest in Scheme that takes a list of numbers and uses fold (or reduce) to
return the second largest element on the list.
You must use either fold or reduce to do the vast majority of the work. (You may do a little pre- and post-
processing outside the call to fold.) You may use the built-in fold method by adding the line (require
'list-lib), or you can use your own implementation.
The built-in fold function has parameters in this order: action partial-result lst.
You may assume that the list contains at least one element.
For example,
(second-largest '(5)) should return 5
(second-largest
• (second-largest
'(1 3)) should return 1
(8 6 7 5 3 0 9)) should return 8

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