二叉堆的實(shí)現(xiàn)數(shù)據(jù)結(jié)構(gòu)中如何使用,我任務(wù)主要是在操作系統(tǒng)中的任務(wù)優(yōu)先級(jí)調(diào)度問題,當(dāng)然也可以用于實(shí)現(xiàn)堆排序問題,比如找出數(shù)組中的第K個(gè)最小值問題,采用二叉堆能夠快速的實(shí)現(xiàn),今天我就采用C語言實(shí)現(xiàn)了一個(gè)簡(jiǎn)單的二叉堆操作,完成這些數(shù)據(jù)結(jié)構(gòu)我并不知道能干什么,我就當(dāng)自己在練習(xí)C語言的功底吧。逐步完成自己的代碼,希望自己在知識(shí)的理解力上有一定的提高。
二叉堆是非常有特點(diǎn)的數(shù)據(jù)結(jié)構(gòu),可以采用簡(jiǎn)單的數(shù)組就能實(shí)現(xiàn),當(dāng)然鏈表的實(shí)現(xiàn)也是沒有問題的,畢竟是一個(gè)二叉樹問題,當(dāng)然可以采用鏈表實(shí)現(xiàn)。采用數(shù)組實(shí)現(xiàn)時(shí),可以找到兩個(gè)特別明顯的規(guī)律:
左兒子:L_Son = Parent * 2;
右兒子:R_Son = Parent * 2 + 1;
二叉堆是一顆完全填滿的樹,可能例外的是在底層,底層上的元素是從左到右填入,當(dāng)然二叉堆可以是基于大值的排序,也可以是基于小值的排列形式,本文采用簡(jiǎn)單的基于小值的形式。主要完成的操作:1、最小值的刪除操作,該操作會(huì)刪除根節(jié)點(diǎn),然后提升兒子節(jié)點(diǎn)來代替根節(jié)點(diǎn),具體的實(shí)現(xiàn)過程中通過提升左右兒子中較小的作為父結(jié)點(diǎn),依此提升直到到達(dá)最底層,這種實(shí)現(xiàn)方式叫做下慮法。2、數(shù)據(jù)的插入操作,插入操作可能會(huì)破壞二叉堆的結(jié)構(gòu),一般在最底層創(chuàng)建一個(gè)空穴,然后比較插入值與空穴父結(jié)點(diǎn)的值,如果大于父結(jié)點(diǎn)的值,那么直接插入到空穴中,如果小于父結(jié)點(diǎn),則將父結(jié)點(diǎn)的值插入到剛創(chuàng)建的空穴中,在父結(jié)點(diǎn)所在位置上形成新的父結(jié)點(diǎn),這時(shí)候再和父結(jié)點(diǎn)的父結(jié)點(diǎn)比較,具體操作如上所述,直到找到具體的插入地址。當(dāng)結(jié)點(diǎn)個(gè)數(shù)為偶數(shù)時(shí),在刪除操作中需要注意節(jié)點(diǎn)是否有右兒子的情況。具體的可以參考代碼中的說明。
具體的實(shí)現(xiàn)如下:
結(jié)構(gòu)體:
#ifndef __BINARYHEAP_H_H_
#define __BINARYHEAP_H_H_
#include <stdlib.h>
#include <assert.h>
#define bool int
#define true 1
#define false 0
/*打算采用數(shù)組的方式實(shí)現(xiàn)完全二叉堆*/
typedef struct _binaryheap
{
/*因?yàn)樾枰獎(jiǎng)討B(tài)擴(kuò)展,
*采用靜態(tài)數(shù)組不方便*/
int * parray;
/*目前存在的結(jié)點(diǎn)*/
int currentSize;
/*樹的實(shí)際容量*/
int capacity;
}BinaryHeap_t, *BinaryHeap_handle_t;
#ifdef __cplusplus
extern "C"
{
#endif
bool init_BinaryHeap(BinaryHeap_handle_t heap, int capacity);
bool alloc_BinaryHeap(BinaryHeap_handle_t *heap, int capacity);
void delete_BinaryHeap(BinaryHeap_handle_t heap);
void free_BinaryHeap(BinaryHeap_handle_t *heap);
bool insert(BinaryHeap_handle_t heap,int value);
int deleteMin(BinaryHeap_handle_t heap);
bool isEmpty(BinaryHeap_handle_t heap);
#ifdef __cplusplus
}
#endif
#endif
實(shí)現(xiàn)的接口函數(shù)如下:
#include "binaryheap.h"
bool isEmpty(BinaryHeap_handle_t heap)
{
assert(heap != NULL);
return heap->currentSize == 0;
}
bool init_BinaryHeap(BinaryHeap_handle_t heap, int capacity)
{
int *parray = NULL;
if(heap == NULL)
return false;
parray = (int *)calloc(capacity+1,sizeof(int));
if(parray == NULL)
return false;
heap->parray = parray;
heap->capacity = capacity;
heap->currentSize = 0;
return true;
}
void delete_BinaryHeap(BinaryHeap_handle_t heap)
{
assert(heap != NULL && heap->parray != NULL);
heap->capacity = 0;
heap->currentSize = 0;
free(heap->parray);
heap->parray = NULL;
}
void free_BinaryHeap(BinaryHeap_handle_t *heap)
{
assert(*heap != NULL);
(*heap)->capacity = 0;
(*heap)->currentSize = 0;
free((*heap)->parray);
(*heap)->parray = NULL;
free(*heap);
*heap = NULL;
}
bool alloc_BinaryHeap(BinaryHeap_handle_t *heap, int capacity)
{
int *parray = NULL;
if(*heap != NULL)
return false;
*heap = (int *)calloc(1, sizeof(BinaryHeap_t));
if(*heap == NULL)
return false;
/*其中的1,主要是為了使得數(shù)組從下標(biāo)1開始計(jì)算*/
parray =(int *)calloc(capacity + 1, sizeof(int));
if(parray == NULL)
return false;
(*heap)->parray = parray;
(*heap)->capacity = capacity;
(*heap)->currentSize = 0;
return true;
}
/**************************************************
* 采用上慮法實(shí)現(xiàn)數(shù)據(jù)的插入操作
* 上慮法的實(shí)現(xiàn)方式比較簡(jiǎn)單,首先創(chuàng)建一個(gè)空節(jié)點(diǎn)
* 然后將需要插入的值與當(dāng)前空穴的父結(jié)點(diǎn)進(jìn)行比較
* 如果大于父結(jié)點(diǎn),直接插入空穴中
* 如果小于父結(jié)點(diǎn)的值,則將父結(jié)點(diǎn)的值下拉到空穴中
* 之前父結(jié)點(diǎn)的位置就是空穴,接著與上層比較
* 直到找到父結(jié)點(diǎn)大于當(dāng)前插入值的情況
**************************************************/
bool insert(BinaryHeap_handle_t heap, int value)
{
int index = 0;
if(heap == NULL || heap->parray == NULL)
return false;
/*得到一個(gè)新的空穴下標(biāo)*/
index = ++heap->currentSize;
/*條件是不是第一個(gè)下標(biāo)和插入值比對(duì)應(yīng)父結(jié)點(diǎn)小*/
while(index > 1 && value < heap->parray[index/2])
{
/*將父結(jié)點(diǎn)保存到當(dāng)前結(jié)點(diǎn)處*/
heap->parray[index] = heap->parray[index/2];
/*得到父結(jié)點(diǎn)的空穴位置*/
index /= 2;
}
/*將插入的值保存到剩余的空穴中*/
heap->parray[index] = value;
return true;
}
/***********************************************************
* 下慮法實(shí)現(xiàn)數(shù)據(jù)的重排序操作
* 實(shí)現(xiàn)的方式,將子結(jié)點(diǎn)的兩個(gè)兒子進(jìn)行比較,將小的提升
* 需要注意的是如何讓判斷節(jié)點(diǎn)是否一定存在右兒子
* 實(shí)現(xiàn)的方式主要是利用了二叉堆的特性:
* 2*pare = L_child
* 2*pare + 1 = R_child;
***********************************************************/
static void presort_BinaryHeap(BinaryHeap_handle_t heap,int hole)
{
/*這是二叉堆的特性*/
int child = hole * 2;
/*保存當(dāng)前數(shù)據(jù)操作*/
int tmp = 0;
assert(heap != NULL && heap->parray != NULL);
tmp = heap->parray[hole];
/*hold * 2 <= heap->currentSize 判斷了當(dāng)前結(jié)點(diǎn)是否為最低層*/
for(; hole * 2 <= heap->currentSize; hole = child)
{
child = hole * 2;
/*******************************
*這句代碼解決是否存在右結(jié)點(diǎn)的問題
*并確定了那個(gè)子結(jié)點(diǎn)提升的問題
*******************************/
if((child != heap->currentSize)
&& (heap->parray[child + 1] < heap->parray[child]))
child ++;
if(heap->parray[child] < tmp)
{
/*將子結(jié)點(diǎn)提升為父結(jié)點(diǎn)*/
heap->parray[hole] = heap->parray[child];
}
}
/*到達(dá)了最低的層,也就是樹葉*/
heap->parray[hole] = tmp;
}
/*實(shí)現(xiàn)數(shù)據(jù)的下慮法實(shí)現(xiàn)數(shù)據(jù)的刪除操作*/
int deleteMin(BinaryHeap_handle_t heap)
{
int ret = 0;
int index = 0;
assert(!isEmpty(heap));
/*需要返回的值*/
ret = heap->parray[1];
/*將最后需要釋放內(nèi)存空間的值保存到第一個(gè)內(nèi)存空間中*/
heap->parray[1] = heap->parray[heap->currentSize --];
/*從表頭開始將新的二叉樹進(jìn)行重新排序*/
presort_BinaryHeap(heap, 1);
return ret;
}
測(cè)試代碼:
#include "binaryheap.h"
#include <stdio.h>
#include <time.h>
void print_binaryheap(BinaryHeap_handle_t heap)[nettpage]
{
int i = 0;
assert(heap != NULL && heap->parray != NULL);
for(i = 1; i <= heap->currentSize; ++ i)
{
if(i %6)
printf("%d\t",heap->parray[i]);
else
printf("\n%d\t",heap->parray[i]);
}
printf("\n");
}
int main()
{
int i = 0;
int value = 0;
srand((int)time(0));
printf("********Test Binaryheap**************\n");
BinaryHeap_t bheap;
BinaryHeap_handle_t *pheap = NULL;
printf("init and alloc test:\n");
if(init_BinaryHeap(&bheap,10))
{
printf("init_BinaryHeap() successed!\n");
}
if (alloc_BinaryHeap(&pheap,15));
{
printf("alloc_BInaryHeap() successed!\n");
}
printf("***insert test*****\n");
for(; i < 10; ++ i)
{
if(!insert(&bheap,5 * i - rand()%20))
{
printf("i = %d:insert failed !!\n",i);
}
}
for(i = 0; i < 15; ++ i)
{
if(!insert(pheap,i * 8 - rand()%20))
{
printf("i = %d:insert failed!!\n",i);
}
}
print_binaryheap(&bheap);
print_binaryheap(pheap);
printf("****deleteMin test****\n");
for(i = 0; i < 5; ++ i)
{
value = deleteMin(&bheap);
printf("bheap deleted:%d\n",value);
value = deleteMin(pheap);
printf("pheap deleted:%d\n",value);
}
print_binaryheap(&bheap);
print_binaryheap(pheap);
printf("deleteMin test successed\n");
printf("****delete and free test:*******\n");
delete_BinaryHeap(&bheap);
printf("Is the bheap empty ? %s\n",
isEmpty(&bheap)?"Yes":"No");
free_BinaryHeap(&pheap);
printf("*********Test successed!***********\n");
pheap = NULL;
return 0;
}
測(cè)試結(jié)果:
[gong@Gong-Computer c_binaryheap]$ ./testbinaryheap
********Test Binaryheap**************
init and alloc test:
init_BinaryHeap()
alloc_BInaryHeap()
***insert test*****
-11 -9 -9 14 15
10 21 23 40 26
-16 2 14 20 13
21 33 49 61 67 76
86 83 95 109
****deleteMin test****
bheap deleted:-11
pheap deleted:-16
bheap deleted:-9
pheap deleted:2
bheap deleted:-9
pheap deleted:13
bheap deleted:10
pheap deleted:14
bheap deleted:14
pheap deleted:20
15 23 21 40 26
21 49 21 61 67
76 33 95 83 109
deleteMin test successed
****delete and free test:*******
Is the bheap empty ? Yes
*********Test
從上面的測(cè)試結(jié)果可知,基本上實(shí)現(xiàn)了二叉堆的基本插入、刪除操作。代碼的關(guān)鍵點(diǎn)在于刪除中的下慮和插入過程中的上慮操作。以及如何判斷代碼是否存在右兒子,如何充分運(yùn)用二叉堆的特性。 二叉堆的實(shí)現(xiàn)數(shù)據(jù)結(jié)構(gòu)中如何使用,我任務(wù)主要是在操作系統(tǒng)中的任務(wù)優(yōu)先級(jí)調(diào)度問題,當(dāng)然也可以用于實(shí)現(xiàn)堆排序問題,比如找出數(shù)組中的第K個(gè)最小值問題,采用二叉堆能夠快速的實(shí)現(xiàn),今天我就采用C語言實(shí)現(xiàn)了一個(gè)簡(jiǎn)單的二叉堆操作,完成這些數(shù)據(jù)結(jié)構(gòu)我并不知道能干什么,我就當(dāng)自己在練習(xí)C語言的功底吧。逐步完成自己的代碼,希望自己在知識(shí)的理解力上有一定的提高。
二叉堆是非常有特點(diǎn)的數(shù)據(jù)結(jié)構(gòu),可以采用簡(jiǎn)單的數(shù)組就能實(shí)現(xiàn),當(dāng)然鏈表的實(shí)現(xiàn)也是沒有問題的,畢竟是一個(gè)二叉樹問題,當(dāng)然可以采用鏈表實(shí)現(xiàn)。采用數(shù)組實(shí)現(xiàn)時(shí),可以找到兩個(gè)特別明顯的規(guī)律:
左兒子:L_Son = Parent * 2;
右兒子:R_Son = Parent * 2 + 1;
二叉堆是一顆完全填滿的樹,可能例外的是在底層,底層上的元素是從左到右填入,當(dāng)然二叉堆可以是基于大值的排序,也可以是基于小值的排列形式,本文采用簡(jiǎn)單的基于小值的形式。主要完成的操作:1、最小值的刪除操作,該操作會(huì)刪除根節(jié)點(diǎn),然后提升兒子節(jié)點(diǎn)來代替根節(jié)點(diǎn),具體的實(shí)現(xiàn)過程中通過提升左右兒子中較小的作為父結(jié)點(diǎn),依此提升直到到達(dá)最底層,這種實(shí)現(xiàn)方式叫做下慮法。2、數(shù)據(jù)的插入操作,插入操作可能會(huì)破壞二叉堆的結(jié)構(gòu),一般在最底層創(chuàng)建一個(gè)空穴,然后比較插入值與空穴父結(jié)點(diǎn)的值,如果大于父結(jié)點(diǎn)的值,那么直接插入到空穴中,如果小于父結(jié)點(diǎn),則將父結(jié)點(diǎn)的值插入到剛創(chuàng)建的空穴中,在父結(jié)點(diǎn)所在位置上形成新的父結(jié)點(diǎn),這時(shí)候再和父結(jié)點(diǎn)的父結(jié)點(diǎn)比較,具體操作如上所述,直到找到具體的插入地址。當(dāng)結(jié)點(diǎn)個(gè)數(shù)為偶數(shù)時(shí),在刪除操作中需要注意節(jié)點(diǎn)是否有右兒子的情況。具體的可以參考代碼中的說明。
具體的實(shí)現(xiàn)如下:
結(jié)構(gòu)體:
#ifndef __BINARYHEAP_H_H_
#define __BINARYHEAP_H_H_
#include <stdlib.h>
#include <assert.h>
#define bool int
#define true 1
#define false 0
/*打算采用數(shù)組的方式實(shí)現(xiàn)完全二叉堆*/
typedef struct _binaryheap
{
/*因?yàn)樾枰獎(jiǎng)討B(tài)擴(kuò)展,
*采用靜態(tài)數(shù)組不方便*/
int * parray;
/*目前存在的結(jié)點(diǎn)*/
int currentSize;
/*樹的實(shí)際容量*/
int capacity;
}BinaryHeap_t, *BinaryHeap_handle_t;
#ifdef __cplusplus
extern "C"
{
#endif
bool init_BinaryHeap(BinaryHeap_handle_t heap, int capacity);
bool alloc_BinaryHeap(BinaryHeap_handle_t *heap, int capacity);
void delete_BinaryHeap(BinaryHeap_handle_t heap);
void free_BinaryHeap(BinaryHeap_handle_t *heap);
bool insert(BinaryHeap_handle_t heap,int value);
int deleteMin(BinaryHeap_handle_t heap);
bool isEmpty(BinaryHeap_handle_t heap);
#ifdef __cplusplus
}
#endif
#endif
實(shí)現(xiàn)的接口函數(shù)如下:
#include "binaryheap.h"
bool isEmpty(BinaryHeap_handle_t heap)
{
assert(heap != NULL);
return heap->currentSize == 0;
}
bool init_BinaryHeap(BinaryHeap_handle_t heap, int capacity)
{
int *parray = NULL;
if(heap == NULL)
return false;
parray = (int *)calloc(capacity+1,sizeof(int));
if(parray == NULL)
return false;
heap->parray = parray;
heap->capacity = capacity;
heap->currentSize = 0;
return true;
}
void delete_BinaryHeap(BinaryHeap_handle_t heap)
{
assert(heap != NULL && heap->parray != NULL);
heap->capacity = 0;
heap->currentSize = 0;
free(heap->parray);
heap->parray = NULL;
}
void free_BinaryHeap(BinaryHeap_handle_t *heap)
{
assert(*heap != NULL);
(*heap)->capacity = 0;
(*heap)->currentSize = 0;
free((*heap)->parray);
(*heap)->parray = NULL;
free(*heap);
*heap = NULL;
}
bool alloc_BinaryHeap(BinaryHeap_handle_t *heap, int capacity)
{
int *parray = NULL;
if(*heap != NULL)
return false;
*heap = (int *)calloc(1, sizeof(BinaryHeap_t));
if(*heap == NULL)
return false;
/*其中的1,主要是為了使得數(shù)組從下標(biāo)1開始計(jì)算*/
parray =(int *)calloc(capacity + 1, sizeof(int));
if(parray == NULL)
return false;
(*heap)->parray = parray;
(*heap)->capacity = capacity;
(*heap)->currentSize = 0;
return true;
}
/**************************************************
* 采用上慮法實(shí)現(xiàn)數(shù)據(jù)的插入操作
* 上慮法的實(shí)現(xiàn)方式比較簡(jiǎn)單,首先創(chuàng)建一個(gè)空節(jié)點(diǎn)
* 然后將需要插入的值與當(dāng)前空穴的父結(jié)點(diǎn)進(jìn)行比較
* 如果大于父結(jié)點(diǎn),直接插入空穴中
* 如果小于父結(jié)點(diǎn)的值,則將父結(jié)點(diǎn)的值下拉到空穴中
* 之前父結(jié)點(diǎn)的位置就是空穴,接著與上層比較
* 直到找到父結(jié)點(diǎn)大于當(dāng)前插入值的情況
**************************************************/
bool insert(BinaryHeap_handle_t heap, int value)
{
int index = 0;
if(heap == NULL || heap->parray == NULL)
return false;
/*得到一個(gè)新的空穴下標(biāo)*/
index = ++heap->currentSize;
/*條件是不是第一個(gè)下標(biāo)和插入值比對(duì)應(yīng)父結(jié)點(diǎn)小*/
while(index > 1 && value < heap->parray[index/2])
{
/*將父結(jié)點(diǎn)保存到當(dāng)前結(jié)點(diǎn)處*/
heap->parray[index] = heap->parray[index/2];
/*得到父結(jié)點(diǎn)的空穴位置*/
index /= 2;
}
/*將插入的值保存到剩余的空穴中*/
heap->parray[index] = value;
return true;
}
/***********************************************************
* 下慮法實(shí)現(xiàn)數(shù)據(jù)的重排序操作
* 實(shí)現(xiàn)的方式,將子結(jié)點(diǎn)的兩個(gè)兒子進(jìn)行比較tbw,將小的提升
* 需要注意的是如何讓判斷節(jié)點(diǎn)是否一定存在右兒子
* 實(shí)現(xiàn)的方式主要是利用了二叉堆的特性:
* 2*pare = L_child
* 2*pare + 1 = R_child;
***********************************************************/
static void presort_BinaryHeap(BinaryHeap_handle_t heap,int hole)
{
/*這是二叉堆的特性*/
int child = hole * 2;
/*保存當(dāng)前數(shù)據(jù)操作*/
int tmp = 0;
assert(heap != NULL && heap->parray != NULL);
tmp = heap->parray[hole];
/*hold * 2 <= heap->currentSize 判斷了當(dāng)前結(jié)點(diǎn)是否為最低層*/
for(; hole * 2 <= heap->currentSize; hole = child)
{
child = hole * 2;
/*******************************
*這句代碼解決是否存在右結(jié)點(diǎn)的問題
*并確定了那個(gè)子結(jié)點(diǎn)提升的問題
*******************************/
if((child != heap->currentSize)
&& (heap->parray[child + 1] < heap->parray[child]))
child ++;
if(heap->parray[child] < tmp)
{
/*將子結(jié)點(diǎn)提升為父結(jié)點(diǎn)*/
heap->parray[hole] = heap->parray[child];
}
}
/*到達(dá)了最低的層,也就是樹葉*/
heap->parray[hole] = tmp;
}
/*實(shí)現(xiàn)數(shù)據(jù)的下慮法實(shí)現(xiàn)數(shù)據(jù)的刪除操作*/
int deleteMin(BinaryHeap_handle_t heap)
{
int ret = 0;
int index = 0;
assert(!isEmpty(heap));
/*需要返回的值*/
ret = heap->parray[1];
/*將最后需要釋放內(nèi)存空間的值保存到第一個(gè)內(nèi)存空間中*/
heap->parray[1] = heap->parray[heap->currentSize --];
/*從表頭開始將新的二叉樹進(jìn)行重新排序*/
presort_BinaryHeap(heap, 1);
return ret;
}
測(cè)試代碼:
#include "binaryheap.h"
#include <stdio.h>
#include <time.h>
void print_binaryheap(BinaryHeap_handle_t heap)
{
int i = 0;
assert(heap != NULL && heap->parray != NULL);
for(i = 1; i <= heap->currentSize; ++ i)
{
if(i %6)
printf("%d\t",heap->parray[i]);
else
printf("\n%d\t",heap->parray[i]);
}
printf("\n");
}
int main()
{
int i = 0;
int value = 0;
srand((int)time(0));
printf("********Test Binaryheap**************\n");
BinaryHeap_t bheap;
BinaryHeap_handle_t *pheap = NULL;
printf("init and alloc test:\n");
if(init_BinaryHeap(&bheap,10))
{
printf("init_BinaryHeap() successed!\n");
}
if (alloc_BinaryHeap(&pheap,15));
{
printf("alloc_BInaryHeap() successed!\n");
}
printf("***insert test*****\n");
for(; i < 10; ++ i)
{
if(!insert(&bheap,5 * i - rand()%20))
{
printf("i = %d:insert failed !!\n",i);
}
}
for(i = 0; i < 15; ++ i)
{
if(!insert(pheap,i * 8 - rand()%20))
{
printf("i = %d:insert failed!!\n",i);
}
}
print_binaryheap(&bheap);
print_binaryheap(pheap);
printf("****deleteMin test****\n");
for(i = 0; i < 5; ++ i)
{
value = deleteMin(&bheap);
printf("bheap deleted:%d\n",value);
value = deleteMin(pheap);
printf("pheap deleted:%d\n",value);
}
print_binaryheap(&bheap);
print_binaryheap(pheap);
printf("deleteMin test successed\n");
printf("****delete and free test:*******\n");
delete_BinaryHeap(&bheap);
printf("Is the bheap empty ? %s\n",
isEmpty(&bheap)?"Yes":"No");
free_BinaryHeap(&pheap);
printf("*********Test successed!***********\n");
pheap = NULL;
return 0;
}
測(cè)試結(jié)果:
[gong@Gong-Computer c_binaryheap]$ ./testbinaryheap
********Test Binaryheap**************
init and alloc test:
init_BinaryHeap()
alloc_BInaryHeap()
***insert test*****
-11 -9 -9 14 15
10 21 23 40 26
-16 2 14 20 13
21 33 49 61 67 76
86 83 95 109
****deleteMin test****
bheap deleted:-11
pheap deleted:-16
bheap deleted:-9
pheap deleted:2
bheap deleted:-9
pheap deleted:13
bheap deleted:10
pheap deleted:14
bheap deleted:14
pheap deleted:20
15 23 21 40 26
21 49 21 61 67
76 33 95 83 109
deleteMin test successed
****delete and free test:*******
Is the bheap empty ? Yes
*********Test
從上面的測(cè)試結(jié)果可知,基本上實(shí)現(xiàn)了二叉堆的基本插入、刪除操作。tbw代碼的關(guān)鍵點(diǎn)在于刪除中的下慮和插入過程中的上慮操作。以及如何判斷代碼是否存在右兒子,如何充分運(yùn)用二叉堆的特性。