1. You may use the source code template in h3.s found in the assignment zip archive as a starting point. Let lower and upper be two positive integers with 1 ≤ lower, upper ≤ 10³ and lower ≤ upper. Let a and b be two positive integers with lower ≤ a,b ≤ upper and a ≤ b. Let x =ab. For all pairs of a and b satisfying the specified conditions, find and print the maximal value of x. For example, suppose lower = 10₁0 and upper = 1310. The algorithm will compute x for each a, b pair where 1010 max then max-x end for end for return max end function max_xor function main () unsigned int lower, max, upper SysPrintStr ("Enter lower? ") lower SysReadInt() SysPrintStr ("Enter upper? ") upper - SysReadInt () max max_xor (lower, upper) SysPrintInt (max) SysExit () end function main

1. You may use the source code template in h3.s found in the assignment zip archive as a starting point. Let lower and upper be two positive integers with 1 ≤ lower, upper ≤ 10³ and lower ≤ upper. Let a and b be two positive integers with lower ≤ a,b ≤ upper and a ≤ b. Let x =ab. For all pairs of a and b satisfying the specified conditions, find and print the maximal value of x. For example, suppose lower = 10₁0 and upper = 1310. The algorithm will compute x for each a, b pair where 1010 max then max-x end for end for return max end function max_xor function main () unsigned int lower, max, upper SysPrintStr ("Enter lower? ") lower SysReadInt() SysPrintStr ("Enter upper? ") upper - SysReadInt () max max_xor (lower, upper) SysPrintInt (max) SysExit () end function main

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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Question

Program this

2 Chapter 2 Exercise: Implementing Loops
1. You may use the source code template in h3.s found in the assignment zip archive as a starting point. Let lower and
upper be two positive integers with 1 ≤ lower, upper ≤ 10³ and lower ≤ upper. Let a and b be two positive integers with lower
≤ a,b ≤ upper and a ≤ b. Let x =ab. For all pairs of a and b satisfying the specified conditions, find and print the maximal
value of x. For example, suppose lower = 10₁0 and upper = 1310. The algorithm will compute x for each a, b pair where 1010
<a,b≤13₁0 anda<b,
x = 1010 1010 1010₂1010₂=0000₂ 010x = 1010 01110101021011₂=0001₂= 110x= 1010 12 10 = 1010₂1100₂ =
0110₂=610x = 1010 1310 = 101021101₂-0111₂ = 710 X = 11101110 1011₂01011₂ - 0000₂= 010x = 11101210 = 1011₂2
1100₂ 0111₂= 710x = 1110 13 ₁0 = 1011₂1101₂= 0110₂= 6₁0x = 1210 1210 1100₂1100₂ = 0000₂=0₁0x=12101310
= 1100₂1101₂=0001₂= 110x = 1310 13 10 = 110121101₂ = 0000₂ 010
The maximal value of x is 7 when a, b = 1010, 13₁0 and a, b = 1110, 1210- The output from the program should be 7. Here is the
pseudocode for the algorithm which solves this problem,
function max_xor (lower: unsigned int, upper: unsigned int) → unsigned int unsigned int a, b, max, x
max - 0
for a lower to upper do
for b - a to
do x+a+b
if x > max then max-x end for
end for
return max
end function max_xor
function main (
unsigned int lower, max, upper SysPrintStr ("Enter lower? ") lower SysReadInt() SysPrintStr ("Enter upper? ") upper -
SysReadInt ()
max max_xor (lower, upper) SysPrintInt (max)
SysExit (
end function main

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