散列表-拉链法-

#include
#include
#define M 11
typedef struct node {
	int pos;
	struct node* link;
	struct hashnode* branch;
}HashTableNode;
typedef struct hashnode {
	int key;
	struct hashnode* next;
}HashNode;
HashTableNode*   NewHSTNode(int i) {
	HashTableNode* htb;
	htb = (HashTableNode*)malloc(sizeof(HashTableNode));
	htb->pos = i;
	htb->link = NULL;
	htb->branch = NULL;
	return htb;
}
HashNode* NewHashNode(int k) {
	HashNode* p;
	p= (HashNode*)malloc(sizeof(HashNode));
	p->key = k;
	p->next = NULL;
	return p;
}
HashTableNode* CreateHashTable() {
	int i;
	HashTableNode* p, * r = NULL, * first=NULL;
	for (i = 0; i < M;i++) {
		p = NewHSTNode(i);
		if (first!=NULL) {
			r->link = p;
		}
		else {
			first = p;
		}
		r = p;
	}
	return first;
}
void Search(HashTableNode* first, int k) {
	int position;
	HashNode * s;
	HashTableNode* temp;
	temp = (HashTableNode*)malloc(sizeof(HashTableNode));
	s = (HashNode*)malloc(sizeof(HashNode));
	temp = first;
	position = k % M;
	for (; temp; temp = temp->link) {
		if (temp->pos == position) {
			break;
		}
	}
	if (temp->branch == NULL) {
		printf("Find Nothing on %dn",k);
	}
	else {
		s = temp->branch;
		while (s) {
			if (s->key==k) {
				printf("find %d, position is: %dn",k, temp->pos);
				return;
			}
			else {
				s = s->next;
			}
		}
		printf("Find Nothing on %dn", k);
	}
}
void Insert(HashTableNode* first, int k) {
	int position;
	HashNode* p, * s;
	HashTableNode* temp;
	s = (HashNode*)malloc(sizeof(HashNode));
	temp = (HashTableNode*)malloc(sizeof(HashTableNode));
	p = NewHashNode(k);
	position = k % M;
	temp = first;
	for (; temp; temp = temp->link) {
		if (temp->pos==position) {
			break;
		}
	}
	if(temp->branch ==NULL) {
		temp->branch = p;
	}
	else {
		s = temp->branch;
		while (s->next) {
			s = s->next;
		}
		s->next = p;
	}
}
void Delete(HashTableNode* first, int k) {
	int position;
	HashNode* s, *p;
	HashTableNode* temp;
	s = (HashNode*)malloc(sizeof(HashNode));
	p = (HashNode*)malloc(sizeof(HashNode));
	temp = (HashTableNode*)malloc(sizeof(HashTableNode));
	position = k % M;
	temp = first;
	for (; temp; temp = temp->link) {
		if (temp->pos == position) {
			break;
		}
	}
	if (temp->branch == NULL) {
		printf("Find Nothing on %d, cannot delete!n", k);
	}
	else {
		s = temp->branch;
		while (s) {
			if (s->key == k) {
				if (s== temp->branch) {
					printf("find %d, position is: %d  ", k, temp->pos);
					temp->branch=s->next;
					printf("has been deleted!n");
					free(s);
					return;
				}
				else {
					printf("find %d, position is: %d  ", k, temp->pos);
					printf("has been deleted!n");
					p->next = s->next;
					free(s);
					return;
				}
				
			}
			else {
				p = s;
				s = s->next;
			}
		}
		printf("Find Nothing on %d, cannot delete!n", k);
	}
}
void PrintHashTable(HashTableNode* first) {
	HashNode* s;
	HashTableNode* temp;
	s = (HashNode*)malloc(sizeof(HashNode));
	temp = (HashTableNode*)malloc(sizeof(HashTableNode));
	printf("HashTable Content here: n");
	temp = first;
	for (; temp; temp = temp->link) {
		printf("Position[%d]:  ", temp->pos);
		if (temp->branch!=NULL) {
			s = temp->branch;
			while (s) {
				printf("%d  ",s->key );
				s = s->next;
			}
		}
		printf("n");
	}
}
void main() {
	HashTableNode* htb;
	htb = CreateHashTable();
	Insert(htb, 11);
	Insert(htb, 33);
	Insert(htb, 55);
	Insert(htb, 66);
	Insert(htb, 36);
	Insert(htb, 69);
	Insert(htb, 16);
	Insert(htb, 49);
	Insert(htb, 82);
	Delete(htb, 49);
	Search(htb, 82);
	PrintHashTable(htb);
	system("pause");
}

Console out result:

find 49, position is: 5 has been deleted!
find 82, position is: 5
HashTable Content here:
Position[0]: 11 33 55 66
Position[1]:
Position[2]:
Position[3]: 36 69
Position[4]:
Position[5]: 16 82
Position[6]:
Position[7]:
Position[8]:
Position[9]:
Position[10]:
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