问题遇到的现象和发生背
```c
#include <stdio.h>
struct ListNode {
int val;
struct ListNode* next;
};
int main() {
struct ListNode* p;
p= (struct ListNode*)malloc(sizeof(struct ListNode));
p->val = 0;
p->next = NULL;
printf("%d\n%p", p->val, p->next);
system("pause");
return 0;
}
```问题相关代码,请勿粘贴截图
运行结果及报错内容