类 Quick
- java.lang.Object
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- edu.princeton.cs.algs4.Quick
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public class Quick extends java.lang.Object
TheQuick
class provides static methods for sorting an array and selecting the ith smallest element in an array using quicksort.For additional documentation, see Section 2.3 of Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne.
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方法概要
修饰符和类型 方法 说明 static void
main(java.lang.String[] args)
Reads in a sequence of strings from standard input; quicksorts them; and prints them to standard output in ascending order.static java.lang.Comparable
select(java.lang.Comparable[] a, int k)
Rearranges the array so thata[k]
contains the kth smallest key;a[0]
througha[k-1]
are less than (or equal to)a[k]
; anda[k+1]
througha[n-1]
are greater than (or equal to)a[k]
.static void
sort(java.lang.Comparable[] a)
Rearranges the array in ascending order, using the natural order.
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方法详细资料
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sort
public static void sort(java.lang.Comparable[] a)
Rearranges the array in ascending order, using the natural order.- 参数:
a
- the array to be sorted
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select
public static java.lang.Comparable select(java.lang.Comparable[] a, int k)
Rearranges the array so thata[k]
contains the kth smallest key;a[0]
througha[k-1]
are less than (or equal to)a[k]
; anda[k+1]
througha[n-1]
are greater than (or equal to)a[k]
.- 参数:
a
- the arrayk
- the rank of the key- 返回:
- the key of rank
k
- 抛出:
java.lang.IllegalArgumentException
- unless0 <= k < a.length
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main
public static void main(java.lang.String[] args)
Reads in a sequence of strings from standard input; quicksorts them; and prints them to standard output in ascending order. Shuffles the array and then prints the strings again to standard output, but this time, using the select method.- 参数:
args
- the command-line arguments
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