use this program https://repl.it/@YBYUN/List, Add two new functions named isSorted() and removeAll().

The function isSorted() checks if the list is sorted in the ascending order or not.

bool isSorted();

For example, if a list contains 10, 30, and 20, the function should return false. However, if the list has 10, 20, 20, and 30, it should return true. Note that if the list is empty or has only one number, the function should return true.

The function removeAll() removes the value given in an argument in the list.

bool removeAll(int value);

For example, if a list contains 10, 30, and 20, remove(30) will remove the value 30 from the list and return true. For the list 10, 20, and 20, remove(40) will not remove anything from the list and return false. If a list has duplication like 10, 30, 30, 20, and 30, remove(30) will remove all 30s in the list and return true. So, the result list will have 10 and 20.

Sample Test Program:

// This is a sample program to test the new functions.

// Read the execution result of the program carefully

// to identify the operations of new functions

int main()

{

List intList;

intList.insert(10, 0);

intList.insert(20, 1);

cout << (intList.isSorted() ? "Yes" : "No") << endl;

intList.insert(15, 2);

cout << (intList.isSorted() ? "Yes" : "No") << endl;

intList.insert(20, 3);

intList.display();

intList.removeAll(20);

intList.display();

intList.removeAll(10);

intList.display();

return 0;

}

Execution Result:

Yes

No

10 20 15 20

10 15

15