C How to Program (8th Edition)
8th Edition
ISBN: 9780133976892
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 3, Problem 3.42E
What’s wrong with the following statement? Rewrite it to accomplish what the programmer was probably trying to do.
printf( “%d”, ++( x + y) ) ;
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Given the following Extended-BNF grammar of the basic mathematical expressions:
Show the derivation steps for the expression: ( 2 + 3 ) * 6 – 20 / ( 3 + 1 )
Draw the parsing tree of this expression.
SEE IMAGE
Whentheuserenters!!,themostrecentcommandinthehistoryisexecuted.In the example above, if the user entered the command:
Osh> !!
The ‘ls -l’ command should be executed and echoed on user’s screen. The command should also be placed in the history buffer as the next command.
Whentheuserentersasingle!followedbyanintegerN,theNthcommandin the history is executed. In the example above, if the user entered the command:
Osh> ! 3
The ‘ps’ command should be executed and echoed on the user’s screen. The command should also be placed in the history buffer as the next command.
Error handling:
The program should also manage basic error handling. For example, if there are no commands in the history, entering !! should result in a message “No commands in history.” Also, if there is no command corresponding to the number entered with the single !, the program should output "No such command in history."
Activity No.
Activity
Time (weeks)
Immediate Predecessors
1
Requirements collection
3
2
Requirements structuring
4
1
3
Process analysis
3
2
4
Data analysis
3
2
5
Logical design
50
3,4
6
Physical design
5
5
7
Implementation
6
6
c. Using the information from part b, prepare a network diagram. Identify the critical path.
Chapter 3 Solutions
C How to Program (8th Edition)
Ch. 3 - Indentify and correct the errors in each of the...Ch. 3 - Fill in the blanks in each of the following: The...Ch. 3 - Prob. 3.12ECh. 3 - Write a single pseudocode statement that indicates...Ch. 3 - Formulate a pseudocode algorithm for each of the...Ch. 3 - State which of the following are true and which...Ch. 3 - For Exercises 3.16-3.20, perform each of these...Ch. 3 - For Exercises 3.16 -3.20, perform each of these...Ch. 3 - (Sales-Commission Calculator) One large chemical...Ch. 3 - (Interest Calculator) The simple interest on a...
Ch. 3 - (Salary Calculator) Develop a program that will...Ch. 3 - (Predecrementing vs. Postdecrementing)Write a...Ch. 3 - (Printing Numbers from a Loop) Write a program...Ch. 3 - (Find the Largest Number) The process of finding...Ch. 3 - (Tabular Output) Write a program that uses looping...Ch. 3 - (Tabular Output) Write a program that utilizes...Ch. 3 - (Find the Two Largest Numbers) Using an approach...Ch. 3 - (Validating User Input) Modify the program in...Ch. 3 - Prob. 3.28ECh. 3 - Prob. 3.29ECh. 3 - (Dangling-Else Problem) Determine the output for...Ch. 3 - (Another Dangling-Else Problem) Modify the...Ch. 3 - Prob. 3.32ECh. 3 - (Hollow Square of Asterisks) Modify the program...Ch. 3 - (Palindrome Tester) A palindrome is a number or a...Ch. 3 - (Printing the Decimal Equivalent of a Binary...Ch. 3 - (How Fast Is Your Computer?) How can you determine...Ch. 3 - (Detecting Multiples of 10) Write a program that...Ch. 3 - (Counting 7s) Write a program that reads an...Ch. 3 - (Checkerboard Pattern of Asterisks) Write a...Ch. 3 - (Multiples of 2 with an Infinite Loop) Write a...Ch. 3 - (Diameter, Circumference and Area of a Cirle)...Ch. 3 - Whats wrong with the following statement? Rewrite...Ch. 3 - (Sides of a Triangle) Write a program that reads...Ch. 3 - (Sides of a Right Triangle) Write a program that...Ch. 3 - (Factorial) The factorial of a nonnegative integer...Ch. 3 - (World-Population-Growth Calculator) Use the web...Ch. 3 - (Target-Heart-Rate Calculator) While exercising,...Ch. 3 - (Enforcing Privacy with Cryptography) The...
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