Could help me fix the error?

my project is find the middle node in the linked list. output text file should sorted with ascending order

please check my code below

#include #include # include #include #include using namespace std;

struct Node { int data; struct Node* next; }; void printMiddle(struct Node *head) { struct Node *slow_ptr = head; struct Node *fast_ptr = head; if (head!=NULL) { while (fast_ptr != NULL && fast_ptr->next != NULL) { fast_ptr = fast_ptr->next->next; slow_ptr = slow_ptr->next; } printf("The middle element is [%d] ", slow_ptr->data); } } void push(struct Node** head_ref, int new_data) { struct Node* new_node = (struct Node*) malloc(sizeof(struct Node)); new_node->data = new_data; new_node->next = (*head_ref); (*head_ref) = new_node; } void printList(struct Node *ptr) { while (ptr != NULL) { printf("%d->", ptr->data); ptr = ptr->next; } printf("NULL "); }

int main() { ofstream file_; file_.open("mytext.txt"); file_ <<"91"<<" "<<"322"<<" "<<"9"<<" "<<10 < file_ <<"77"<<" "<<"8"<<" "<<"999"<<" "<<12 < file_ <<"133"<<" "<<"14" < file_ <<"8"< file_ <<"538"<<" "<<"29"<<" "<<"91" < file_ <<"88" < file_ <<"702"<<" "<<"361" < file_ <<"637" < file_ <<"99" <

file_.close(); std::string line_; ifstream file_("mytext.txt"); if(file_.is_open()) { while(getline(file_, line_)) { std::cout< } file_.close(); } else std::cout<<"file is not open"<< ' '; std::cin.get(); return 0; }