void swap(int * a,int * b){    int temp = *a;    *a = *b;    *b = temp;}void PercDown(int * array,int p,int N){    int child,parent;    int x = array[p];    for (parent = p; (parent*2+1)
        
         =0; --i) {//创建堆        PercDown(array,i,N);    }        for (i = N-1; i>0 ; --i) {        swap(&array[0], &array[i]);        PercDown(array, 0, i);    }}
        

 

参考：网易云课堂：浙江大学-数据结构-陈越、何钦铭