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javaʵÏÖ¶ÑÅÅÐòµÄÎÊÌâ

      /**
* Ò»´Î½¨¶ÑµÄ¹ý³Ì
* @param a
*/
public static void createHeap(int[] a,int i,int n){
int temp;
int j=2*i;
int x=a[i];
while(j <=n){
if(a[j] <a[j+1]){
j++;
}
if(a[i] <a[j]){
a[i]=a[j];
i=j;
j=2*i;
}else{
break;
}
}
a[i]=x;
}

/**
* ¶ÑÅÅÐò
* @param a
*/
public static void heapSort(int[] a,int n){
int temp=0;
for(int i=n/2-1;i>=0;i--){
createHeap(a,i,n);
}
for(int m=n;m>=1;m--){
temp=a[m-1];
a[m-1]=a[0];
a[0]=temp;
createHeap(a,0,m-1);
}
}

        public static void main(String[] args){
                int[] a=new int[]{43,2,5,64,23,1};
heapSort(a,a.length);
System.out.println("--¶ÑÅÅÐò----");
for(int m : a){
System.out.println(m);
}
}

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--¶ÑÅÅÐò----
2
1
23
43
5
64

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