构建链式栈

#include<stdio.h>
#include<malloc.h>
#define ERROR 0
#define OK 1
#define STACK_INT_SIZE 10  /*存储空间初始分配量*/
#define STACKINCREMENT 5  /*存储空间分配增量*/
typedef  int ElemType; /*定义元素的类型*/
typedef struct{
    ElemType *base;
    ElemType *top;
    int stacksize;     /*当前已分配的存储空间*/
}SqStack;

int InitStack(SqStack *S);   /*构造空栈*/
int Push(SqStack *S,ElemType e); /*入栈*/
int Pop(SqStack *S,ElemType *e);  /*出栈*/
int CreateStack(SqStack *S);     /*创建栈*/
void PrintStack(SqStack *S);   /*出栈并输出栈中元素*/
void Transformation(ElemType num,SqStack *S);//把一个10进制数转化为2进制
void Maketentotwo()
{
	ElemType num;
	SqStack st;
	printf("Enter a number we can make it from 10 to 2:\n");
	getchar();
	scanf("%d",&num);
	InitStack(&st);
	Transformation(num,&st);
	PrintStack(&st);
}
void Transformation(ElemType num,SqStack *S)
{
	ElemType k;
	while(num)
	{
		k=num%2;
		Push(S,k);
		num/=2;
	}
}
int InitStack(SqStack *S){
    S->base=(ElemType *)malloc(STACK_INT_SIZE *sizeof(ElemType));
    if(!S->base) return ERROR;
    S->top=S->base;
    S->stacksize=STACK_INT_SIZE;
    return OK;
}/*InitStack*/

int Push(SqStack *S,ElemType e){
	if(S->top-S->base==S->stacksize)
	{
		int i=S->stacksize-1;
		ElemType *pt;
		pt=(ElemType *)malloc(2*S->stacksize*sizeof(ElemType));
		while(i>=0)
		{
			*(pt+i)=*(S->base+i);
			i--;
		}
		free(S->base);
		S->base=pt;
		S->top=pt+S->stacksize;
		S->stacksize*=2;
	}
	*(S->top)=e;
	S->top++;
	return OK;
}/*Push*/

int Pop(SqStack *S,ElemType *e){
	if(S->top>S->base)
	{
		S->top--;
		*e=*(S->top);
		return OK;
	}
	else
	{
		free(S->base);
		return ERROR;
	}
}/*Pop*/

int CreateStack(SqStack *S){
    int e;
    if(InitStack(S))
        printf("Init Success!\n");
    else{
        printf("Init Fail!\n");
        return ERROR;
    }
    printf("input data:(Terminated by inputing a character)\n");
    while(scanf("%d",&e))
        Push(S,e);
    return OK;
}/*CreateStack*/

void PrintStack(SqStack *S){
    ElemType e;
    while(Pop(S,&e))
        printf("%3d",e);
	printf("\n");
}/*Pop_and_Print*/

int main(){
    SqStack ss;
    printf("\n1-createStack\n");
    CreateStack(&ss);
    printf("\n2-Pop&Print\n");
    PrintStack(&ss);
	Maketentotwo();
    return 0;
}   

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