C语言数据结构之顺序表和单链表
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2022-06-19 08:17:52
一、顺序表的创建、删除和插入#define _crt_secure_no_warnings 1#includestruct sqlist {int date[10];in...
一、顺序表的创建、删除和插入
#define _crt_secure_no_warnings 1 #include<stdio.h> struct sqlist { int date[10]; int length; }; void initlist(sqlist& l) { for (int i = 0;i < 10;i++) { l.date[i] = 0; } l.length = 0; } void charu(sqlist& l) { for (int j = 0;j < 5;j++) { scanf("%d", &l.date[j]); l.length++; } } void listinsert(sqlist& l, int i, int e) { for (int k = l.length;k >= i;k--) { l.date[k] = l.date[k - 1]; } l.date[i - 1] = e; l.length++; } void print(sqlist& l) { for (int i = 0;i < l.length;i++) { printf("%d ", l.date[i]); } printf("\n"); } void listdelete(sqlist& l, int i, int e) { for (int j = i;j < l.length;j++) { l.date[j-1] = l.date[j]; } l.length--; } int main() { sqlist l;//创建顺序表l initlist(l);//初始化顺序表 shuru(l);//输入值 listinsert(l, 3, 3);//插入值 print(l);//打印 listdelete(l, 3, 3);//删除值 print(l); return 0; }
以上操作分别实现了对顺序表的创建,插入,删除和打印
二、单链表的创建、删除、增加和输出
#define _crt_secure_no_warnings 1 #include<stdio.h> #include<stdlib.h> struct listnode { int num; struct listnode* next; }; struct listnode* create(struct listnode* head) { struct listnode * p1, * p2; p1 = p2 = (struct listnode*)malloc(sizeof(struct listnode)); scanf("%d", &p1->num); while (p1->num!=0){ if (head == null) { head = p1; } else { p2->next = p1; } p2 = p1; p1= (struct listnode*)malloc(sizeof(struct listnode)); scanf("%d", &p1->num); } p2->next = null; free(p1); return head; } void print(struct listnode* head) { while (head != null) { printf("%d ", head->num); head = head->next; } } int main() { struct listnode* head=null; head=create(head);//创建链表 print(head);//输出链表 return 0; }
以上操作为创建链表并打印,效果如下:
现在增加插入操作
#define _crt_secure_no_warnings 1 #include<stdio.h> #include<stdlib.h> struct listnode { int num; struct listnode* next; }; struct listnode* create(struct listnode* head) { struct listnode * p1, * p2; p1 = p2 = (struct listnode*)malloc(sizeof(struct listnode)); scanf("%d", &p1->num); while (p1->num!=0){ if (head == null) { head = p1; } else { p2->next = p1; } p2 = p1; p1= (struct listnode*)malloc(sizeof(struct listnode)); scanf("%d", &p1->num); } p2->next = null; free(p1); return head; } void print(struct listnode* head) { while (head != null) { printf("%d ", head->num); head = head->next; } printf("\n"); } struct listnode* insert(struct listnode* head,int i) { struct listnode* p1,*p2,*p; p1 =p2= head; for (int j = 1;j < i;j++) { p2 = p1; p1 = p1->next; } p= (struct listnode*)malloc(sizeof(struct listnode)); printf("请输入插入的数:"); scanf("%d", &p->num); p2->next = p; p->next = p1; return head; } int main() { struct listnode* head=null; int a, b; head=create(head); print(head); printf("请输入插入位置:"); scanf("%d", &a); head = insert(head,a);//插入新数据 print(head); return 0; }
效果如下:
现增加删除操作
#define _crt_secure_no_warnings 1 #include<stdio.h> #include<stdlib.h> struct listnode { int num; struct listnode* next; }; struct listnode* create(struct listnode* head) { struct listnode * p1, * p2; p1 = p2 = (struct listnode*)malloc(sizeof(struct listnode)); scanf("%d", &p1->num); while (p1->num!=0){ if (head == null) { head = p1; } else { p2->next = p1; } p2 = p1; p1= (struct listnode*)malloc(sizeof(struct listnode)); scanf("%d", &p1->num); } p2->next = null; free(p1); return head; } void print(struct listnode* head) { while (head != null) { printf("%d ", head->num); head = head->next; } printf("\n"); } struct listnode* insert(struct listnode* head,int i) { struct listnode* p1,*p2,*p; p1 =p2= head; for (int j = 1;j < i;j++) { p2 = p1; p1 = p1->next; } p= (struct listnode*)malloc(sizeof(struct listnode)); printf("请输入插入的数:"); scanf("%d", &p->num); p2->next = p; p->next = p1; return head; } struct listnode* delete(struct listnode* head, int i) { struct listnode* p1, * p2; p1 = p2 = head; while (p1!=null&&p1->num != i) { p2 = p1; p1 = p1->next; } if (p1 == head) { head = head->next; } else { p2->next = p1->next; } return head; } int main() { struct listnode* head=null; int a, b; head=create(head); print(head); printf("请输入插入位置:"); scanf("%d", &a); head = insert(head,a); print(head); printf("请输入删除值:"); scanf("%d", &b); head = delete(head, b);//删除数据 print(head); return 0; }
效果如下:
因此,我们便实现了对单链表的创建、删除、增加和输出
总结
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