Starting Out with Java: From Control Structures through Objects (6th Edition)
6th Edition
ISBN: 9780133957051
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 2MC
This is the part of a problem that can be solved without recursion.
- a. base case
- b. solvable case
- c. known case
- d. iterative case
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Is the recursive solution to the triangle number the best way to obtain the triangle number?
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Yes, because the shape of the triangle number diagram lends itself to a recursive solution.
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A problem that is defined recursively must have:-
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The word ladder game was invented by Lewis Carroll in 1877. The idea is to begin with a start word and then change one letter at a time until you arrive at an end word. Each word along the way must be an English word. For example, starting from FISH, you can arrive at MAST through the following word ladder:FISH, WISH, WASH, MASH, MAST Write a program that uses recursion to find the word ladder given a start word and an end word, or that determines no word ladder exists. Use the file words.txt that is available online with the source code for the book as your dictionary of valid words. This file contains 87,314 words. Your program does not need to find the shortest word ladder between words; any word ladder will do if one exists.
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aalii aardvark aardvarks aardwolf aba abaca abaci abacist aback abacus abacuses abaft abalone abalones abamp abampere abandon abandoned abandonee abandoner abandoners
Chapter 16 Solutions
Starting Out with Java: From Control Structures through Objects (6th Edition)
Ch. 16.2 - It is said that a recursive algorithm has more...Ch. 16.2 - Prob. 16.2CPCh. 16.2 - What is a recursive case?Ch. 16.2 - What causes a recursive algorithm to stop calling...Ch. 16.2 - What is direct recursion? What is indirect...Ch. 16 - Prob. 1MCCh. 16 - This is the part of a problem that can be solved...Ch. 16 - This is the part of a problem that is solved with...Ch. 16 - This is when a method explicitly calls itself. a....Ch. 16 - Prob. 5MC
Ch. 16 - Prob. 6MCCh. 16 - True or False: An iterative algorithm will usually...Ch. 16 - True or False: Some problems can be solved through...Ch. 16 - True or False: It is not necessary to have a base...Ch. 16 - True or False: In the base case, a recursive...Ch. 16 - Find the error in the following program: public...Ch. 16 - Prob. 1AWCh. 16 - Prob. 2AWCh. 16 - What will the following program display? public...Ch. 16 - Prob. 4AWCh. 16 - What will the following program display? public...Ch. 16 - Convert the following iterative method to one that...Ch. 16 - Write an iterative version (using a loop instead...Ch. 16 - What is the difference between an iterative...Ch. 16 - What is a recursive algorithms base case? What is...Ch. 16 - What is the base case of each of the recursive...Ch. 16 - What type of recursive method do you think would...Ch. 16 - Which repetition approach is less efficient: a...Ch. 16 - When recursion is used to solve a problem, why...Ch. 16 - How is a problem usually reduced with a recursive...Ch. 16 - Prob. 1PCCh. 16 - isMember Method Write a recursive boolean method...Ch. 16 - String Reverser Write a recursive method that...Ch. 16 - maxElement Method Write a method named maxElement,...Ch. 16 - Palindrome Detector A palindrome is any word,...Ch. 16 - Character Counter Write a method that uses...Ch. 16 - Recursive Power Method Write a method that uses...Ch. 16 - Sum of Numbers Write a method that accepts an...Ch. 16 - Ackermarms Function Ackermanns function is a...Ch. 16 - Recursive Population Class In Programming...
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- Any problem that can be solved recursively can also be solved with a .arrow_forwardWhich of the following is/are true regarding the characteristics of recursion? a.Every recursive call reduces the original problem, bringing it increasingly closer to a base case until it becomes that case. b.Recursive method requires less memory than an iterative method. c. It is possible to convert every recursive method to an iterative method. d.The method is implemented using an if-else or a switch statement that leads to different cases. e.One or more base cases are used to stop recursion.arrow_forwardThe part of a problem that is solved with recursion is the case.a. baseb. iterativec. unknownd. recursivearrow_forward
- solve q5 only pleasearrow_forward4. The Area of the Target: To decide on prizes for the archery contest, you decided to use the areas of the center and rings. You decided that rings with smaller areas should be worth more points. But how much more? Complete the following investigation to help you decide. a. Find the sequence of the areas of the rings, including the center. (Be careful.) b. Write a recursive formula and an explicit formula for this sequence. C. Write the explicit formula in summation notation. Find the total area of the bull's eye if it had 9 rings around the bull's eye.arrow_forwardIndirect recursion is when function A calls function B, which in turn calls function A. is it true or false.arrow_forward
- Write a recursive function that takes a positive integer and returns the factorial of that integer. Attention, the function must be recursive, and its name must be "fatorial".arrow_forwardRohan is playing a game in his class in which he takes heights of two persons and then find the greatest common divisor of those heights. You have to help rohan by writing c code using recursionarrow_forwardFor any part that requires recursion, if you do not create a recursive function, that will result in a on that part.arrow_forward
- Determine whether a string is a palindromeA palindrome is a string of characters that reads the same from right to left as it does from left to right, regardless of punctuation and spaces.The specifications for this assignment are: •Write and test a non-recursive solution in Java that determines whether a string is a palindrome •Your program should consist of at least two methods: (1) the main method (2) the method which performs the task of determining whether the specified string is a palindrome. You should name this method isPalindrome. You should name the class that contains your “main” method and the isPalindrome method FindPalindrome. •You must use a Stack and a Queue in your solution: Write your own Stack and Queue based on the Vector in the Java API and use those in your solution. You should name those classes StackVector and QueueVector respectively. You already have access to the relevant exception classes and interfaces for the above ADTs. •All of your belong to a Java…arrow_forwardsolve q4 only pleasearrow_forwardsolve q6 only pleasearrow_forward
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