4-ĥ A partial declaration of the AnagramGrouper class is as follows: You will implement two methods in the AnagramGrouper class.
The following diagram shows a map with the key strings and associated anagram sets that would be created from the list in the previous example. Original list of words Anagram sets from the list of words tan, ant introduces, reductions, discounter poodle, looped retains, retinas, nastier polled -3-Ĥ The anagram sets will be organized as a map in which each key is a key string and the associated value is the set of words that each have that key string. The example below shows a list of words and the anagram sets that are produced from that list. A word with no anagrams in the list will be contained in a singleton set. Consider the problem of creating a group of anagram sets from a list of words. Some examples of anagram sets include "poodle", "looped", "nastier", "retains", "retinas", and "discounter", "introduces", "reductions". A set of words form an anagram set if all words in the set have the same key string. For example, the words "poodle" and "looped" both have the key string "deloop". A key string for a word is the string obtained when the letters in the word are arranged in alphabetical order. For example, if the running time is On ( ), a response of 2 On ( ) will not be given credit. When Big-Oh running time is required for a response, you must use the most restrictive Big-Oh expression.
#Ap calculus ab response 2008 full
Writing significant amounts of code that can be replaced by a call to one of these methods may not receive full credit. In writing solutions for each question, you may use any of the accessible methods that are listed in classes defined in that question. Otherwise, unless noted in the question, assume that parameters in method calls are not null and that methods are called only when their preconditions are satisfied. ListNode and TreeNode parameters may be null. Assume that the implementation classes ListNode and TreeNode (page A4 in the Appendix) are used for any questions referring to linked lists or trees, unless otherwise specified. The use of other methods may not receive full credit.
Solutions that use objects of types Stack, Queue, and PriorityQueue should use only the methods listed in the Appendix for accessing and modifying those objects. The and classes and the interface (page A2 in the Appendix) each inherit methods that access elements in a way that violates their abstract data structure definitions. Notes: Assume that the classes listed in the Quick Reference found in the Appendix have been imported where appropriate. REMEMBER THAT PROGRAM SEGMENTS ARE TO BE WRITTEN IN JAVA. Permission to use copyrighted College Board materials may be requested online at: Visit the College Board on the Web: AP Central is the official online home for the AP Program: .Ģ COMPUTER SCIENCE AB SECTION II Time 1 hour and 45 minutes Number of questions 4 Percent of total grade 50 Directions: SHOW ALL YOUR WORK. PSAT/NMSQT is a registered trademark of the College Board and National Merit Scholarship Corporation. College Board, Advanced Placement Program, AP, AP Central, SAT, and the acorn logo are registered trademarks of the College Board. The College Board is committed to the principles of excellence and equity, and that commitment is embodied in all of its programs, services, activities, and concerns. Among its best-known programs are the SAT, the PSAT/NMSQT, and the Advanced Placement Program (AP ). Each year, the College Board serves seven million students and their parents, 23,000 high schools, and 3,500 colleges through major programs and services in college admissions, guidance, assessment, financial aid, enrollment, and teaching and learning. Founded in 1900, the association is composed of more than 5,000 schools, colleges, universities, and other educational organizations. 1 AP Computer Science AB 2008 Free-Response Questions The College Board: Connecting Students to College Success The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity.
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