Wednesday, 19 October 2016
Saturday, 8 October 2016
Thursday, 6 October 2016
Implement the stack operations
Implement the stack
operations for the stack of books, for the followings:
a) Push 5 book information.
b) Pop 2 book information.
c) Peep the 1st book.
d) Display all books from
stack.
#include<stdio.h>
#define max 5
struct stack
{
int
stc[max];
int top;
}s;
/* ~~~~~~~~~~~ PUSH~~~~~~~~~*/
void push()
{
int x;
if(s.top==(max-1))
{
printf("The
stack is overflow :");
return;
}
else
{
printf("Enter
the element you want to stack=");
scanf("%d",&x);
s.top=s.top+1;
s.stc[s.top]=x;
}
}
/*~~~~~~~~~~~~POP~~~~~~~~~~~~*/
void pop()
{
int a;
a=s.stc[s.top];
if(s.top==-1)
{
printf("The
stack is underflow on pop :");
}
else
{
s.top=s.top-1;
printf("The
popped element is= %d",a);
}
}
/*~~~~~~~~~~~PEEP~~~~~~~~~*/
void peep()
{
int i,a;
printf("Enter
the position of element you want to peep from top :");
scanf("%d",&i);
/*if((s.top-i)+1<=0)
{
printf("The
stack is underflow");
return;
}
else
{
if(i==s.top)
{
printf("The
top most element is=",s.stc[s.top]);
}
else
{
printf("The
elemnet you peeped is=",s.stc[s.top-i+1]);
}
}*/
if((s.top-i+1)<=0)
{
printf("The
stack is underflow on pop :");
}
else
{
a = s.stc[s.top-i+1];
printf("The
searched elemement is:%d",a);
}
}
/*~~~~~~~~~~DISPLAY~~~~~~~~~~~*/
void display()
{
int i;
if(s.top==-1)
{
printf("Stack
is empty :");
}
else
{
for(i=s.top;i>=0;i--)
{
printf("value is :");
printf("%d",s.stc[i]);
printf("\n");
}
}
}
/*~~~~~~~~~~ MAIN~~~~~~~~*/
void main()
{
int b,i;
s.top=-1;
do
{
printf("\n..............................................\n");
printf("Enter
your choice\n");
printf("Enter
1 for push\n");
printf("Enter
2 for pop\n");
printf("Enter
3 for peep\n");
printf("Enter
4 for display\n");
printf("\n..............................................\n");
scanf("%d",&i);
switch(i)
{
case
1 : push();
break;
case
2 : pop();
break;
case
3 : peep();
break;
case
4 : display();
break;
default
: printf("You entered wrong choice :");
}
printf("Enter
0 to continue and enter 9 for exit :");
scanf("%d",&b);
}while(b==0);
}
Output:-
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