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stacklinked.c
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stacklinked.c
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#include<stdio.h>
#include<stdlib.h>
typedef struct node{
int data;
struct node* link;
}node;
node* top=NULL;
void push(int data){
node* newnode=(node*)malloc(sizeof(node));
if(newnode==NULL){
printf("NO SPACE\n");
return;
}
if (top==NULL){
newnode->data=data;
newnode->link=NULL;
top=newnode;
return;
}
else{
newnode->data=data;
newnode->link=top;
top=newnode;
return;
}
}
void pop(){
if(top==NULL){
printf("EMPTY STACK!");
return;
}
else{
node* temp=top;
int value=top->data;
printf("THE VALUE POPED IS:%d",value);
top=top->link;
free(temp);
}
}
void display(){
if(top==NULL){
printf("EMPTY STACK!\n");
return;
}
else{
node* temp=top;
while(temp!=NULL){
printf("%d\t",temp->data);
temp=temp->link;
}
}
}
void main(){
int data,op;
while(1){
printf("\n1.PUSH\n2.POP\n3.DISPLAY\n4.Exit\nSelect the operation:");
scanf("%d",&op);
if(op==1){
printf("Enter the element to be pushed:");
scanf("%d",&data);
push(data);
}
else if(op==2){
pop();
}
else if(op==3){
display();
}
else if(op==4){
exit(0);
}
else printf("INVALID OPERATION!!");
}
}