ban demo chua cmt - To change this license header...

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*/
package shellsort;
/**
*
* @author quoch
*/
public class Shellsort {
/**
* @param args the command line arguments
*/
public static void shellsort(int []a){// ham sap xep chen
int temp;
int gap = a.length/2;
while(gap >0){
for(int i = gap; i<a.length;i++){
temp = a[i];
int pre= i - gap;