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Quick sort

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  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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Quick sort

  1. 1. QUICKSORTAlineNascimentoDanilo AtaideProfessor Leandro Guarino
  2. 2. Introdução O algoritmo Quick Sort é um método de ordenação muitorápido e eficiente; Inventado por C.A.R. Hoare em 1960, quando era estudanteda Universidade de Moscovo; Hoare criou o Quick Sort ao tentar traduzir um dicionário deinglês para russo, ordenando as palavras, tendo comoobjetivo reduzir o problema original em subproblemas paraassim poder ser resolvido mais fácil e rapidamente.
  3. 3. Como Funciona? Este método divide a tabela em duas sub-tabelas, a partir de um elemento chamadopivô, normalmente o 1º elemento da tabela. Uma das sub-tabelas contém os elementosmenores que o pivô enquanto a outracontém os maiores. O pivô é colocado entreambas, ficando na posição correta.
  4. 4. Como Funciona? EXEMPLO: Essas barras de tamanhos diferentes devem seralinhadas em ordem crescente:
  5. 5. Como Funciona? O algoritmo Quick Sort escolhe um elemento aleatório queserá o pivô.
  6. 6. Como Funciona? Os elementos são organizados de maneira que os menoresficam do lado esquerdo do pivô e os maiores do lado direito(são as duas sub-tabelas). E pivô já está na posição correta.
  7. 7. Como Funciona? Depois de encontrar a posição do pivô e separar em duastabelas, ele passa para uma das sub-tabelas e escolhe outropivô.
  8. 8. Como Funciona? Então, com esse outro pivô ele repete o procedimento,encontra o lugar dele, separa os menores em outras sub-tabelas e ordena.
  9. 9. Como Funciona? O pivô do início e todo o lado esquerdo já está ordenado,Agora ele passa para a outra sub-tabela, o lado direito doprimeiro pivô, escolhe outro pivô e ordena.
  10. 10. Como Funciona? Encontra o local certo do pivô e ordena os lados como nosoutros casos.
  11. 11. Como Funciona? E depois de ordenado ele fica assim:
  12. 12. Como Funciona? Em execução:
  13. 13. Como ocorrem as trocas? Para explicar como ocorrem as trocas depoisde escolhido o pivô.
  14. 14. Como ocorrem as trocas? Após fixar o pivô, ele passa para sub-tabelas de valoresmenores e maiores.
  15. 15. O código Colocar algum aki
  16. 16. Comparando Bubble x QuickSort
  17. 17. Conclusão Existem muitos tipos de algoritmos deordenação e várias razões para se ordenaruma seqüência. Uma delas é a possibilidadese acessar seus dados de modo maiseficiente. O Quick Sort é um dos método mais rápidosde ordenação TEM Q TERMINAR
  18. 18. Referências Bibliográficas http://pt.wikipedia.org/wiki/Quicksort http://br.monografias.com http://w3.ualg.pt/~hshah/ped/Aula%2014/Quick_final.html http://utopia.poly.edu/~kshanm01/algorithm/quick_sort_simulation.html GOODRICH, Michael T. & TAMASSIA, Roberto. Estrutura deDados e Algoritmos em JAVA, 4ª ed. – Porto Alegre, 2007

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