Ex 1) Trace the following flowchart for when input is 11 and complete the trace table. Also write pre-post- conditions for this flowchart. start num prime true d+2 prime true and F d≤num/2 F num mod d=0 prime = true T "is not prime" T num, "is prime" prime-false d+d+1 end num prime d output

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
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please help me with these questions. I having trouble understanding it. Please review the images below for instructions. And please include both pre and post conditions 

Thank you

Ex 1) Trace the following flowchart for when input is 11 and complete the trace table. Also,
write pre- post- conditions for this flowchart.
start
num
prime true
d+2
prime true and
F
d≤num / 2
F
T
prime = true
F
num mod d=0
"is not prime"
num, "is prime"
prime-false
d+d+1
end
num
prime
d
output
Transcribed Image Text:Ex 1) Trace the following flowchart for when input is 11 and complete the trace table. Also, write pre- post- conditions for this flowchart. start num prime true d+2 prime true and F d≤num / 2 F T prime = true F num mod d=0 "is not prime" num, "is prime" prime-false d+d+1 end num prime d output
Ex 2) Trace the following flowchart for the input values 3. 12. -2, 5. 15. 1. 1. 1 and complete
the trace table. Also, write pre-post-conditions for this flowchart.
start
sum1 -0
sum2 - 0
i+1
i+i+1
num
F
i≤4
sum1 <sum1 + num
sum1 sum2 i
num
output
i+1
F
i≤4
i+i+1
F
T
num
sum1=sum2
T
"no"
"yes"
sum2 + sum2 + num
end
Transcribed Image Text:Ex 2) Trace the following flowchart for the input values 3. 12. -2, 5. 15. 1. 1. 1 and complete the trace table. Also, write pre-post-conditions for this flowchart. start sum1 -0 sum2 - 0 i+1 i+i+1 num F i≤4 sum1 <sum1 + num sum1 sum2 i num output i+1 F i≤4 i+i+1 F T num sum1=sum2 T "no" "yes" sum2 + sum2 + num end
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