Intractable Problems

May 5th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

Intractable Problems The Classes P and NP Mohamed M. El Wakil Mohamed M. El Wakil mohamed@elwakil.net

Word Count: 1083
Showing Page: 1/22
IntractableProblems IntractableProblems Intractable Problems TheClassesPandNP MohamedM.ElWakil Mohamed M. El Wakil mohamed@elwakil.net1Agenda1. 2. 3. 4. 5. 5 Whatisaproblem? Decidableornot? Decidable or not? ThePclass TheNPClass TheNP Completeclass The NPComplete class2Whatisaproblem? What is a problem? Aproblem isaquestiontobeanswered. WhatisthevalueofX/Y? Aproblemusuallyhasparameters. p y p X,andY A decision problem is a version of the Adecisionproblem,isaversion ofthe problemwithonlytwopossibleanswers:Yes orNo! or No! GiventwonumbersX,andY,doesYevenlydivide X? Aninstance:aspecificprobleminstance Does3evenlydivide6?3Decidableornot? Decidable or not? Adecidableproblem,isaproblemthatcould besolvedusingacomputer. A Anundecidableproblem,isaproblemthat d id bl bl i bl th t cannever besolvedusingacomputer,neither noworinthefuture. Onlydecidableproblems! 4Classification Weneedtoclassifyproblemsintermsoftheir p y computability. Th Threeclasses: l Pclass NPClass NPComplete class NPCompleteclass5Pclass,wrt P class wrt Computers Problemswithatleastonealgorithmthat solvestheprobleminpolynomialtimewrt to l h bl

Review from student

Studypool Student
" Thanks for the help. "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1831 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors