Ex 4) Trace the following flowchart for when input values are 12, -2, -3, 6, -11, 3, 1, -1 and complete the trace table. Also, write pre- post-conditions for this flowchart. start | cnt1–0 cnt2 +0 i +1 i+i+1 num is 4 num<0 T ent1 ( cnt1 + 1 i +1 i←i+1 num is 4 num>0 T cnt2 + cnt2 + 1 F cnt1=cnt2 "yes" (end) "no"

Ex 4) Trace the following flowchart for when input values are 12, -2, -3, 6, -11, 3, 1, -1 and complete the trace table. Also, write pre- post-conditions for this flowchart. start | cnt1–0 cnt2 +0 i +1 i+i+1 num is 4 num<0 T ent1 ( cnt1 + 1 i +1 i←i+1 num is 4 num>0 T cnt2 + cnt2 + 1 F cnt1=cnt2 "yes" (end) "no"

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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Concept explainers

Concept of flowchart

A flow chart diagram is a collection of symbols that represents the steps involved in a process. It is a generic tool that can be adapted for various purposes. It is one of the most common process analysis tools. It is used for the graphical analysis of an algorithm. It helps to represent the flow of the process from the input to output. A flowchart that represents the workflow of activities is known as an activity diagram.There are so many ways that can help people to understand computer technologies and their applications. One of them is a flowchart diagram.

Question

Ex 4) Trace the following flowchart for when input values are 12, -2, -3, 6, -11, 3, 1, -1 and complete the trace
table. Also, write pre- post-conditions for this flowchart.
start
cnt1+0
cnt2 <0
i←1
i←i+1
num
is 4
num<0
T
cnt1 + cnt1 +1
T
F
F
i ←1
i←i+1
num
is 4
num>0
T
cnt2 cnt2 +1
F
F
cnt1=cnt2
T
"yes"
end
"no"

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