#include <stdio.h>
#include <stdlib.h>
typedef struct LinkStack {
int data;
struct LinkStack* next;
}LinkStack;
LinkStack* push(LinkStack * stack, int a) {
LinkStack* line = (LinkStack*)malloc(sizeof
#include <stdio.h>
#include <stdlib.h>
typedef struct LinkStack {
int data;
struct LinkStack* next;
}LinkStack;
LinkStack* push(LinkStack * stack, int a) {
LinkStack* line = (LinkStack*)malloc(sizeof