Remember graph coloring problem in the problem session.(a) Draw the graph of the following code block.(b) Explain how you represent the components of the code in graph coloring problem.(c) What is the minimum number of registers that you need to compile the code? Show which variables can bein the same register.Line 1: a = 3Line 2: b = 6Line 3: c = 4Line 4: d = b + cLine 5: e = d + aLine 6: if e < 4 then f = 4 bLine 7: else then f = 6 aLine 8: d = f - c Remember graph coloring problem in the problem session.(a) Draw the graph of the following code block.(b) Explain how you represent the components of the code in graph coloring problern.(c) What is the minimum number of registers that you need to compile the code? Show which variables can bein the same register.Line 1: a= 3Line 2: b = 6Line 3: c = 4Line 4: d = b+eLine 5: e = d + aLine 6: if e < 4 then f= 4 x bLine 7: else then f = 6 x aLine 8: d = f-e

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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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Remember graph coloring problem in the problem session.
(a) Draw the graph of the following code block.
(b) Explain how you represent the components of the code in graph coloring problem.
(c) What is the minimum number of registers that you need to compile the code? Show which variables can be
in the same register.
Line 1: a = 3
Line 2: b = 6
Line 3: c = 4
Line 4: d = b + c
Line 5: e = d + a
Line 6: if e < 4 then f = 4 b
Line 7: else then f = 6 a
Line 8: d = f - c

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