A program to perform the push operation in stack.

Push_element _in_stack.txt

#Test Case 1

Input (stdin)
6

3 5 9 1 12 15

Expected Output

Top=15

15

12

1

9

5

3

#Test Case 2

Input (stdin)
7

9 4 66 34 23 45 22

Expected Output

Top=22

22

45

23

34

66

4

9

push_element_in_stack.c

#include <stdio.h>
#include <stdlib.h>
struct node{
  int data;
  struct node *next;
};
struct node *top;
void push(int v){
  struct node *t;
  t = (struct node *)malloc(sizeof(struct node ));
  t->data = v;
  t->next = NULL;
  if(top==NULL)
    top = t;
  else{
    t->next = top;
    top = t;
  }
}
void disp(){
  struct node *p=top;
  while(p!=NULL){
    printf("%d\n",p->data);
    p=p->next;
  }
}

int main()
{
  int n,x,i;
  top=NULL;
  scanf("%d",&n);
  for(i=0;i<n;i++){
    scanf("%d",&x);
    push(x);
  }
  printf("Top=%d\n",top->data);
  disp();
	return 0;
}