Answer / splurgeop

// assumin all things are given function to delete
from beginning.....



int delete_from_beg()
{
int el;
if(head==NULL)
{
printf("\n can't delete ");
return -1;
}
else
{
struct doubly *temp;
temp=head;
el=temp->info;
head=temp->next;
temp->next=NULL;
head->prev=NULL;
return el;
}

}



//delete from end


int delete_from_end()
{
int el;
if(head==NULL)
{
printf("\n can't delete");
return -1;
}
else
{
struct doubly *temp;
temp=head;
while(temp->next!=NULL)
temp=temp->next;
el=temp->info;
if(temp==head)
head=NULL;
else
temp->prev->next=NULL;
return el;
}
}




// delete from any position



int delete_at_pos(int item)
{
int el,flag=0;
struct doubly *temp;
if(head==NULL)
{
printf("\n cant delete ");
return -1;
}
else
{
temp=head;
while(item>1)
{
item--;
temp=temp->next;
if(temp==NULL&& item>=1)
{
flag=1;
break;
}
}
if(flag==1)
{
el=-1;
printf("\n cant delete at the specified
location");
}
else
{
if(temp==head)
{
el=temp->info;
head=temp->next;
}
else
{
struct doubly *t;
t=temp;
el=temp->info;
temp->prev->next=t->next;
temp->next->prev=t->prev;
}

}
}
return el;
}




// where doubly is structure

struct doubly
{
int data;
struct doubly *prev,*next;
};

Answer / viktor

typedef int info_t;
typedef struct element
{
info_t info;
struct element *next;
struct element *prev;
}node;
typedef node* nodep;


Function to delete a node:

void del_node(nodep p)
{
(p->prev)->next=p->next;
(p->next)->prev=p->prev;
free(p);
}

Answer / shruti

to delete an element.
enter the position of the element to be deleted.
-> pos.

structure of node is

struct node
{
int data;
struct node *prev , *next;
}

//home is the starting pointer of hte list.
struct node * delete(struct node *home , int pos)
{
temp = home;
if(pos == 1)
{
temp = home;
home = home -> next;
free(temp);
}

temp = home;
p = home;

for(i = 0 ; i < pos ; i++)
{
p = p -> next;
}

temp = p -> next;
temp1 = temp -> next;

p -> next = temp1;
temp1 -> prev = p

free(temp);
}

return home;
}

Answer / aggdhbsam

dsgfdagfdg
[op;iop

main() { int i=3; switch(i) { default:printf("zero"); case 1: printf("one"); break; case 2:printf("two"); break; case 3: printf("three"); break; } }

1 Answers  

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# include<stdio.h> aaa() { printf("hi"); } bbb(){ printf("hello"); } ccc(){ printf("bye"); } main() { int (*ptr[3])(); ptr[0]=aaa; ptr[1]=bbb; ptr[2]=ccc; ptr[2](); }

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program to Reverse a linked list

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A program that will create a movie seat reservation. The program will display the summary seats and its status. The user will be ask what seat no. to be reserved, then it will go back again to the summary to display the updated seat status. If the seat no. is already reserved then it will prompt an error message. And also if the input seat no is out of range then it will also prompt an error message. The program is continuously running. Termination of the program will depends on how the programmer will apply. Sample output: Movie Seats Reservation Summary of Seats: Seat 1: Available Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 6 The Seat no. is out of range! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 The Seat no. is already reserved! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 0 GoodBye... Thank You!!!

0 Answers  

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main() { int *j; { int i=10; j=&i; } printf("%d",*j); }

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void main() { int i=10, j=2; int *ip= &i, *jp = &j; int k = *ip/*jp; printf(“%d”,k); }

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&#8206;#define good bad main() { int good=1; int bad=0; printf ("good is:%d",good); }

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Is the following code legal? struct a { int x; struct a b; }

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Give a oneline C expression to test whether a number is a power of 2?

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why the range of an unsigned integer is double almost than the signed integer.

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#include <stdio.h> #define a 10 main() { #define a 50 printf("%d",a); }

2 Answers  

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