void n_p(struct list * a)//往链表尾添加一个新成员
{
struct peo_info * p;
p=a->h;
while(p->next!=NULL)
p=p->next;
p->next=(struct peo_info *)malloc(sizeof(struct peo_info));
input_p(p->next);
p->next->next=NULL;
a->l++;
}
int main()
{
struct student s;
struct student s1[10];
int n,d,ch2,ch1;
printf("enter the number of records to be entered");
scanf("%d",&n);
printf("choose the way to operate:\n 1.with pointer\n 2. without pointer");
scanf("%d",&ch1);
switch(ch1)
{
case 1:
{
input_p(&s,n);
do
{
printf("choose the operation to perform:\n 1.display all\n 2.display particular\n 3.delete\n 4.insert\n 5.bubble sort\n 6.selection sort\n 7.binary seach");
scanf("%d",&ch2);
switch(ch2)
{
case 1:
display_all_p(&s,n);
break;
case 2:
printf("enter the record to be displayed");
scanf("%d",&d);
display_part_p(&s,d);
break;
case 3:
printf("\n enter the record to be deleted");
scanf("%d",&d);
del_p(&s,d,n);
break;
case 4:
printf("\n enter the position at which record is to be inserted");
scanf("%d",&d);
ins_p(&s,d,n);
break;
case 5:
printf("you chose to sort the records by their roll no using bubble sort");
bubblesort(&s,n);
break;
case 6:
printf("you chose to sort the records by their roll no using selection sort");
selection_sort(&s,n);
break;
case 7:
printf("you chose to search a record using binary search by their roll no");
bin_search(&s,n);
break;
default:
break;
}
}while(ch2!=8);
}
break;
case 2:
{
input(s1,n);
do
{
printf("choose the operation to perform:\n 1.display all\n 2.display particular\n 3.delete\n 4.insert\n 5. exit");
scanf("%d",&ch2);
switch(ch2)
{
case 1:
display_all(s1,n);
break;
case 2:
printf("enter the record to be displayed");
scanf("%d",&d);
display_part(s1,d);
break;
case 3:
printf("\n enter the record to be deleted");
scanf("%d",&d);
del(s1,d,n);
break;
case 4:
printf("\n enter the position at which record is to be inserted");
scanf("%d",&d);
ins(s1,d,n);
break;
default:
printf("please enter a valid input");
break;
}
}while(ch2!=5);
}
break;
default:
break;
}
getchar();
return 0;
}
