X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FQuickSort.java;h=c28928d8dfa60f12b0b77d231b77794370415dd0;hb=c16c1633e1a5acc9f44e4de40b9abbb8a59b99b4;hp=f81056ae748f8dca6dd6dd2654e1887792b130c8;hpb=1ecf6419aba86993b3c223bf5ec0fa79427baf85;p=jalview.git diff --git a/src/jalview/util/QuickSort.java b/src/jalview/util/QuickSort.java index f81056a..c28928d 100755 --- a/src/jalview/util/QuickSort.java +++ b/src/jalview/util/QuickSort.java @@ -1,91 +1,228 @@ -package jalview.util; - - -public class QuickSort { - - public static void sort(float[] arr,Object[] s) { - sort(arr,0,arr.length-1,s); - } - - public static void sort(String[] arr,Object[] s) { - stringSort(arr,0,arr.length-1,s); - } - - public static void stringSort(String[] arr,int p, int r,Object[] s) { - int q; - - if (p < r) { - q = stringPartition(arr,p,r,s); - stringSort(arr,p,q,s); - stringSort(arr,q+1,r,s); - } - } - - public static void sort(float[] arr,int p, int r,Object[] s) { - int q; - - if (p < r) { - q = partition(arr,p,r,s); - sort(arr,p,q,s); - sort(arr,q+1,r,s); - } - } - - private static int partition(float[] arr, int p, int r,Object[] s) { - float x = arr[p]; - int i = p-1; - int j = r+1; - - while(true) { - do { - j = j-1; - } while (arr[j] > x); - - do { - i = i+1; - } while (arr[i] < x); - - if ( i < j) { - float tmp = arr[i]; - arr[i] = arr[j]; - arr[j] = tmp; - - Object tmp2 = s[i]; - s[i] = s[j]; - s[j] = tmp2; - } else { - return j; - } - } - } - private static int stringPartition(String[] arr, int p, int r,Object[] s) { - String x = arr[p]; - int i = p-1; - int j = r+1; - - while(true) { - do { - j = j-1; - } while (arr[j].compareTo(x) < 0); - - do { - i = i+1; - } while (arr[i].compareTo(x) > 0); - - if ( i < j) { - String tmp = arr[i]; - arr[i] = arr[j]; - arr[j] = tmp; - - Object tmp2 = s[i]; - s[i] = s[j]; - s[j] = tmp2; - } else { - return j; - } - } - } -} - - - +/* + * Jalview - A Sequence Alignment Editor and Viewer (Development Version 2.4.1) + * Copyright (C) 2009 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ +package jalview.util; + +public class QuickSort +{ + public static void sort(int[] arr, Object[] s) + { + sort(arr, 0, arr.length - 1, s); + } + public static void sort(float[] arr, Object[] s) + { + sort(arr, 0, arr.length - 1, s); + } + + public static void sort(double[] arr, Object[] s) + { + sort(arr, 0, arr.length - 1, s); + } + + public static void sort(String[] arr, Object[] s) + { + stringSort(arr, 0, arr.length - 1, s); + } + + public static void stringSort(String[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = stringPartition(arr, p, r, s); + stringSort(arr, p, q, s); + stringSort(arr, q + 1, r, s); + } + } + + public static void sort(float[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = partition(arr, p, r, s); + sort(arr, p, q, s); + sort(arr, q + 1, r, s); + } + } + + public static void sort(double[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = partition(arr, p, r, s); + sort(arr, p, q, s); + sort(arr, q + 1, r, s); + } + } + public static void sort(int[] arr, int p, int r, Object[] s) + { + int q; + + if (p < r) + { + q = partition(arr, p, r, s); + sort(arr, p, q, s); + sort(arr, q + 1, r, s); + } + } + + private static int partition(float[] arr, int p, int r, Object[] s) + { + float x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j] > x); + + do + { + i = i + 1; + } while (arr[i] < x); + + if (i < j) + { + float tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } + + private static int partition(int[] arr, int p, int r, Object[] s) + { + int x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j] > x); + + do + { + i = i + 1; + } while (arr[i] < x); + + if (i < j) + { + int tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } + + private static int partition(double[] arr, int p, int r, Object[] s) + { + double x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j] > x); + + do + { + i = i + 1; + } while (arr[i] < x); + + if (i < j) + { + double tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } + + private static int stringPartition(String[] arr, int p, int r, Object[] s) + { + String x = arr[p]; + int i = p - 1; + int j = r + 1; + + while (true) + { + do + { + j = j - 1; + } while (arr[j].compareTo(x) < 0); + + do + { + i = i + 1; + } while (arr[i].compareTo(x) > 0); + + if (i < j) + { + String tmp = arr[i]; + arr[i] = arr[j]; + arr[j] = tmp; + + Object tmp2 = s[i]; + s[i] = s[j]; + s[j] = tmp2; + } + else + { + return j; + } + } + } +}