请大佬帮忙，帮帮孩子吧

EMT418 2024-10-03 10:41:12

#include<iostream>
using namespace std;
struct node {
	int data;
	node* next;
};
typedef struct node pnode;
void freeList(pnode* head) {
	pnode* tmp;
	while (head != nullptr) {
		tmp = head;
		head = head->next;
		delete tmp;
	}
}
int  main() {
	int n;
	cin >> n;
	pnode* head = new pnode;
	int x;
	cin >> x;
    head->data = x;
	head->next = NULL;
	pnode* p = head;
	pnode* tmp = head;
	pnode* s;
	for (int i = n;i!=1;i--) {
	    s = new pnode;
		p->next = s;
		p = s;
		p->next = NULL;
		cin >> x;
		p->data = x;
	}
	int m,flag,k,d;
	cin >> m;
	while (m != 0) {
		cin >> flag;
		cin >> k;
		if (flag == 0) {
			cin >> d;
		}
		if (flag == 0&&k<=n) {
			if (k == 0) {
				tmp = new pnode;
				tmp->data = d;
				tmp->next = head;
				head = tmp;
			}
			else {
				p = head;
				while (k != 1) {
					p = p->next;
					k--;
				}
				tmp = new pnode;
				tmp->data = d;
				tmp->next = p->next;
				p->next = tmp;
			}
		}
		if (flag == 1&&k!=0) {
			p = head;
		    tmp = head;

			if (k == 1) {
				head = head->next;
				tmp->next = NULL;
				delete tmp;
			}
			else {
				while (k != 1) {
					if (p != head) {
						tmp = tmp->next;
					}
					p = p->next;
					k--;
				}
				tmp->next = p->next;
				p->next = NULL;
				delete p;
			}
		}
		m--;
	}
	p= head;
	while (p!= NULL) {
		cout << p->data << " ";
		p = p->next;
	}
	freeList(head);
     
	return 0;
}

哪里有段错误啊，找不到，救救我

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