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//z5547070
//Wamia Imtiaz Chowdhury
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#define MAX_LIST_LEN 100
struct node {
struct node *next;
int data;
};
struct node *delete_highest(struct node *head);
struct node *array_to_list(int len, int array[]);
void print_list(struct node *head);
static void free_list(struct node *head);
// DO NOT CHANGE THIS MAIN FUNCTION
int main(void) {
// scan in quantity of numbers
printf("Total numbers in list: ");
int list_size;
scanf(" %d", &list_size);
// scan numbers into array
int n_read = 0;
int numbers_list[MAX_LIST_LEN] = {0};
while (n_read < list_size && scanf(" %d", &numbers_list[n_read])) {
n_read++;
}
// create linked list from inputs
struct node *head = array_to_list(n_read, numbers_list);
struct node *new_head = delete_highest(head);
print_list(new_head);
free_list(new_head);
return 0;
}
//
// Delete the node(s) in the list that contain the highest value
// The deleted node(s) are freed.
// The head of the list is returned.
//
struct node *delete_highest(struct node *head) {
// PUT YOUR CODE HERE (change the next line!)
if (head == NULL) {
return NULL;
}
struct node *current = head;
int highest = head->data;
while (current != NULL) {
if (current->data > highest) {
highest = current->data;
}
current = current->next;
}
struct node *prev = NULL;
current = head;
while (current != NULL) {
if (current->data == highest) {
struct node *to_delete = current;
if (prev == NULL) {
head = head->next;
} else {
prev->next = current->next;
}
free(to_delete);
}
prev = current;
current = current->next;
}
return head;
}
// DO NOT CHANGE THIS FUNCTION
// Free all nodes in the supplied list
static void free_list(struct node *head) {
if (head != NULL) {
free_list(head->next);
free(head);
}
}
// DO NOT CHANGE THIS FUNCTION
// create linked list from array of ints
struct node *array_to_list(int len, int array[]) {
struct node *head = NULL;
int i = len - 1;
while (i >= 0) {
struct node *n = malloc(sizeof (struct node));
assert(n != NULL);
n->next = head;
n->data = array[i];
head = n;
i -= 1;
}
return head;
}
// DO NOT CHANGE THIS FUNCTION
// print linked list
void print_list(struct node *head) {
printf("[");
struct node *n = head;
while (n != NULL) {
// If you're getting an error here,
// you have returned an invalid list
printf("%d", n->data);
if (n->next != NULL) {
printf(", ");
}
n = n->next;
}
printf("]\n");
}
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