3. Given the following program in a language which supports first-class functions as well as both lexically-scoped (indicated using a lex declaration) and dynamically-scoped variables (indicated using a dyn declaration) with lambda used to define anonymous functions. //declare dynamically scoped var dyn b = 3; //Define function f with single parameter a f(a) { lex static1 = a * 2; lex static2 = b; //return function which takes a single parameter x. return lambda (x) { return x + static1*static2 + b; } } //Define function f with single parameter a sub h(a) { dyn b = a + 5 return f(5) } //print result of calling return'd function from h(3) with //actual parameter 5. print h(3)(5); What will be printed by the above program? Justify your answer by showing the values of all the variables.

3. Given the following program in a language which supports first-class functions as well as both lexically-scoped (indicated using a lex declaration) and dynamically-scoped variables (indicated using a dyn declaration) with lambda used to define anonymous functions. //declare dynamically scoped var dyn b = 3; //Define function f with single parameter a f(a) { lex static1 = a * 2; lex static2 = b; //return function which takes a single parameter x. return lambda (x) { return x + static1*static2 + b; } } //Define function f with single parameter a sub h(a) { dyn b = a + 5 return f(5) } //print result of calling return'd function from h(3) with //actual parameter 5. print h(3)(5); What will be printed by the above program? Justify your answer by showing the values of all the variables.

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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