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Algoritma dan Struktur Data

Algoritma dan Struktur Data. Sorting. SORTING ( Pengurutan Data). Pengurutan data dapat dilakukan dengan urutan menaik (Ascending ) atau Menurun (Descending) !!! EXAMPLE DataAwal : 3 1 5 10 2 Pengurutan ASCENDING : 1 2 3 5 10

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Algoritma dan Struktur Data

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  1. AlgoritmadanStruktur Data Sorting

  2. SORTING (Pengurutan Data) Pengurutan data dapatdilakukandenganurutanmenaik (Ascending ) atauMenurun (Descending) !!! EXAMPLE DataAwal : 3 1 5 10 2 PengurutanASCENDING : 1 2 3 5 10 PengurutanDESCENDING : 10 5 3 2 1 METODE : MetodePenyisipan (Insertion Sort) MetodeSeleksi (Selection Sort) MetodeGelembung (Bubble Sort)

  3. INSERTION SORT MenggunakanTeknikPenyisipan data Example : Jelaskanproseslogika yang terjadiuntukmengurutkan data dibawahinidenganmenggunakan INSERTION SORT Ascending ! ! ! 10 81 2 15 1 Answer : Mis P = Proses P=1 10 81 2 15 1 P=2 10 81 2 15 1 P=3 2 10 81 15 1 P=4 2 10 15 81 1 P=4 1 2 10 15 81

  4. {urut data} for k=2 to 5 do y=A[k]; j=k-1; ketemu FALSE while(j > 1 ) and (notketemu) if y < A[j] then A[j+1]  A[j] {geser} j  j -1 else ketemu TRUE endif end while A[j+1]  y en dfor INSERTION SORT AlgoritmaContohInsertion {Contohpenggunaan insertion Sort} Deklarasi A : array [1.. 5] ofinteger; y,j : integer ketemu : boolean Deskripsi A[1]10 A[2] 81 A[3]2 A[4]15 A[5]1 K=2 10 81 2 15 1 (y=81) (A[2] 81) K=3 10 81 2 15 1 (y=2) 10 81 81 15 1 10 10 81 15 1 2 10 81 15 1 (A[1]  y) K=4 2 10 81 15 1 (y=15) 2 10 81 81 1 2 10 15 81 1 (A[3]  y) K=5 2 10 15 811 (y=1) 2 10 15 8181 2 10 15 151 2 10 10 811 2 2 15 811 1 2 15 811 (A[3]  y) PROSES ALGORITMA

  5. SELECTION SORT MenggunakanTeknikPenukaran Data Example : Jelaskanproseslogika yang terjadiuntukmengurutkan data dibawahinidenganmenggunakan SELECTION SORT Ascending ! ! ! 10 81 2 15 1 Answer : Mis P = Proses P=1 10 81 2 15 1 P=2 1 81 2 15 10 P=3 1 2 81 15 10 P=4 1 2 10 15 81 1 2 10 15 81

  6. {urut data} for k=1 to 4 do indeks k {perulanganmencarinilai minimum} for jk+1 to 5 do if k[indeks] > k[j] thenindeks j endif en dfor {pertukaran data} tempA[k] A[k] A[indeks] A[indeks]temp en dfor SELECTION SORT AlgoritmaContohInsertion {Contohpenggunaan insertion Sort} Deklarasi A : array [1.. 5] ofinteger; j,k,indeks : integer temp : integer Deskripsi A[1]10 A[2] 81 A[3]2 A[4]15 A[5]1 K=1 10 81 2 15 1 (indeks=1) j=2 indeks=1 j=3 indeks=3 j=4 indeks=3 j=5 indeks=5 K=2 1 81 2 15 10 (indeks =2) j=3 indeks=3 j=4 indeks=3 j=5 indeks=3 K=3 1 2 81 15 10 (indeks =3) j=4 indeks=4 j=5 indeks=5 P=4 1 2 10 15 81 (indeks =4) j=5 indeks=4 PROSES ALGORITMA

  7. LATIHAN Jelaskanproseslogikadanprosesalgortima yang terjadiuntukmengurutkan data dibawahinidenganmenggunakan : INSERTION SORT Ascending ! ! ! INSERTION SORT Descending ! ! ! 17 90 25 56 12 78 59 1 8

  8. LATIHAN Jelaskanproseslogikadanprosesalgortima yang terjadiuntukmengurutkan data dibawahinidenganmenggunakanmetode : SELECTION SORT Ascending ! ! ! SELECTION SORT Descending ! ! ! 77 2 31 21 11 5 66 9 99

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