edu.princeton.cs.algs4

Class LSD

java.lang.Object

edu.princeton.cs.algs4.LSD

public class LSD
extends java.lang.Object

The LSD class provides static methods for sorting an array of w-character strings or 32-bit integers using LSD radix sort.

For additional documentation, see Section 5.1 of Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne.

Method Summary

Modifier and Type	Method and Description
static void	main(java.lang.String[] args) Reads in a sequence of fixed-length strings from standard input; LSD radix sorts them; and prints them to standard output in ascending order.
static void	sort(int[] a) Rearranges the array of 32-bit integers in ascending order.
static void	sort(java.lang.String[] a, int w) Rearranges the array of W-character strings in ascending order.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

sort

public static void sort(java.lang.String[] a,
                        int w)

Rearranges the array of W-character strings in ascending order.

Parameters:

a - the array to be sorted

w - the number of characters per string

sort

public static void sort(int[] a)

Rearranges the array of 32-bit integers in ascending order. This is about 2-3x faster than Arrays.sort().

Parameters:

a - the array to be sorted

main

public static void main(java.lang.String[] args)

Reads in a sequence of fixed-length strings from standard input; LSD radix sorts them; and prints them to standard output in ascending order.

Parameters:

args - the command-line arguments