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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
struct node {
int key;
int value;
struct node* next_node;
};
struct linkedList {
struct node* first_node;
void (*initFirstNode)(struct linkedList* self);
void (*initFirstNodeKV)(struct linkedList* self, int key, int value);
void (*push)(struct linkedList* self, int key, int value);
};
void linkedList_initFirstNode(struct linkedList* self);
void linkedList_initFirstNodeKV(struct linkedList* self, int key, int value);
void linkedList_push(struct linkedList* self, int key, int value);
int main()
{
// int A1;
// scanf("%d", &A1);
// int N;
// scanf("%d", &N);
// struct node n0;
struct linkedList linkedList;
linkedList.initFirstNode = &linkedList_initFirstNode;
linkedList.initFirstNodeKV = &linkedList_initFirstNodeKV;
linkedList.push = &linkedList_push;
// linkedList.first_node = &n0;
// (*linkedList.first_node).key = 7;
// printf("%d\n", n0.key);
// linkedList.initFirstNode(&linkedList);
linkedList.initFirstNodeKV(&linkedList, 8, 15);
linkedList.push(&linkedList, 4, 23);
// printf("%d\n", (*linkedList.first_node).value);
// printf("%d\n", (*(*linkedList.first_node).next_node).value);
return 0;
}
void linkedList_initFirstNode(struct linkedList* self) {
struct node n;
n.key = 0;
n.value = 0;
n.next_node = NULL;
(*self).first_node = &n;
}
void linkedList_initFirstNodeKV(struct linkedList* self, int key, int value) {
struct node n;
n.key = key;
n.value = value;
n.next_node = NULL;
(*self).first_node = &n;
printf("%d\n", (*self).first_node->key);
printf("%p\n", (*self).first_node);
}
void linkedList_push(struct linkedList* self, int key, int value) {
// struct node n;
// n.key = key;
// n.value = value;
// n.next_node = (*self).first_node;
//(*(*self).first_node).key = 16;
printf("%d\n", (*(*self).first_node).key);
printf("%p\n", (*self).first_node);
// printf("%d\n", n.key);
// (*self).first_node = &n;
}
