#include<iostream>
#include<stdlib.h>
#include<malloc.h>
#define STACK_INIT_SIZE 100
#define STACKINCREMENT 10
using namespace std;
struct sqstack
{
int *base;
int *top;
int stacksize;
};
int Initstack(sqstack &s)
{
s.base = (int*)malloc(STACK_INIT_SIZE*sizeof(int));...