#include<stdio.h>
#include<stdlib.h>
typedef int ElemType;
typedef struct Linknode {
ElemType data;
struct Linknode* next;
}Linknode, *LiStack;
bool InitStack(LiStack &L) {
L = (Linknode *)malloc(sizeof(Linknode));
L->data = NULL;
L->next = NULL;
return true;
}
bool Hade_Push(LiStack& L, ElemType e) {
Linknode* s = (Linknode*)malloc(sizeof(Linknode));
s->data = e;
s->next = L->next;
L->next = s;
return true;
}
bool Hade_Pop(LiStack& L, ElemType &e) {
if (L->next == NULL) return false;
e = L->next->data;
L->next = L->next->next;
return true;
}
bool Push(LiStack &L,ElemType e){
Linknode* s = (Linknode*)malloc(sizeof(Linknode));
s->next = L->next;
L->next = s;
s->data = L->data;
L->data = e;
return true;
}
bool Pop(LiStack& L, ElemType &e) {
if (L == NULL) return false;
e = L->data;
L = L->next;
return true;
}
int main() {
Linknode* L;
InitStack(L);
Push(L, 2);
Push(L, 3);
Push(L, 4);
ElemType e;
Pop(L, e);
printf("%d",e);
Pop(L, e);
printf("%d", e);
Pop(L, e);
printf("%d", e);
return 1;
}
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