Alaaddin74/MohlerASAG huggingface dataset:
Question: What is the main advantage of a doubly-linked list over a basic linked list?
Instructor answer: All the deletion and insertion operations can be performed in constant time, including those operations performed before a given location in the list or at the end of the list.

Student answer: they can traverse in both directions
Grade (0-5): 3.5

Student answer: In a doubly linked list you can delete a node without having to traverse the list.
Grade (0-5): 4.5

Student answer: A doubly-linked list allows you to delete a node without traversing the list to establish a trailing pointer.
Grade (0-5): 4.5

Student answer: A doubly linked list allows you to traverse the list in either direction. Each node points to its successor as well as to its predecessor.
Grade (0-5): 3.5

Student answer: Doubly-linked lists can traverse backwards, though they still cannot access data at any point in the list, it can be shorter to traverse backwards.
Grade (0-5): 3.5

Student answer: you can traverse the list from front to back and back to front
Grade (0-5): 3.5

Student answer: You can traverse the list in reverse.
Grade (0-5): 3.5

Student answer: Doubly linked lists can be traversed in both directions
Grade (0-5): 3.5

Student answer: Double-linked lists require more space per node, and their elementary operations are more expensive; but they are often easier to manipulate because they allow sequential access to the list in both directions.
Grade (0-5): 3.5

Student answer: You can traverse forwards and backwards through nodes.
Grade (0-5): 3.5

Student answer: You can point both forwards and backwards
Grade (0-5): 3.5

Student answer: You can go backwards in the linked list and access previous data easier without having to keep track of the previous item
Grade (0-5): 4

Student answer: Doubly linked lists allow backward movement through the nodes.
Grade (0-5): 3.5

Student answer: they have double pointers, so each node can point forwards or backwards. Making it a little easer to get to where you need.
Grade (0-5): 3.5

Student answer: ability to backtrack through a list.
Grade (0-5): 3

Student answer: You can move forwards and backwards in the double-linked list. Basic only moves forwards.
Grade (0-5): 3.5

Student answer: The advantage is that each node points to bothe its predecessor and its successor. There are no special cases for insertion and deletion.
Grade (0-5): 4.5

Student answer: each node points to both its predecessor and its successor.
Grade (0-5): 3.5

Student answer: a doubly linked list has pointers in both directions. this allows for access from back to front as well as front to back
Grade (0-5): 4

Student answer: A doubly linked list can be traversed either direction, while a normal linked list can only be traversed from start to finish
Grade (0-5): 3.5

Student answer: Double Linked list are often easier to manipulate, because they allow sequential access to the list in both direction
Grade (0-5): 4

Student answer: given a node in the list, one can navigate easily in either direction
Grade (0-5): 4

Student answer: You can traverse the list both forward and backwards.
Grade (0-5): 3.5
Question: What is the main advantage of a doubly-linked list over a basic linked list?
Instructor answer: All the deletion and insertion operations can be performed in constant time, including those operations performed before a given location in the list or at the end of the list.

Student answer: a doubly linked list allows you to back up from a node rather than having to go through the entire list again<br>
Grade (0-5): 4

Student answer: Gives faster times for some operations such as insertion and deletion
Grade (0-5): 5

Student answer: The primary disadvantage of doubly linked lists are that (1) each node requires an extra pointer, requiring more space, and (2) the insertion or deletion of a node takes a bit longer (more pointer operations).
Grade (0-5): 2
Question: What is the main disadvantage of a doubly-linked list over a basic linked list?
Instructor answer: Extra space required to store the back pointers.

Student answer: they take up twice as much memory for each node
Grade (0-5): 5

Student answer: In a doubly linked list, there are more pointers to set and the mechanics of inserting and deleting are more difficult. Also, the special cases at the beginning or end of the list are more complicated.
Grade (0-5): 3.5

Student answer: There are more pointers to set, the mechanics of inserting into and deleting from a doubly linked list are a bit more involved than for a singly linked list.
Grade (0-5): 4

Student answer: Insertion and deletion with a doubly linked list are more involved than with a singly linked list leaving more room for error and complex algorithms.
Grade (0-5): 3

Student answer: Need more memory to store "previous" pointers.
Grade (0-5): 5

Student answer: a node in a doubly linked list takes up more memory than a node in a singly linked list.
Grade (0-5): 5

Student answer: You have to keep up with where you are and you have to consider the predecessor and successor connections when inserting/deleting.
Grade (0-5): 3

Student answer: Each node requires an extra node, requires more memory, and is more difficult to insert and remove individual nodes
Grade (0-5): 5

Student answer: Double-linked lists require more space per node, and their elementary operations are more expensive
Grade (0-5): 5

Student answer: More difficult to delete and create nodes.
Grade (0-5): 3

Student answer: They use more memory and you have to make 2 pointers and update 2 pointers each time you change the list.
Grade (0-5): 5

Student answer: nodes take up more memory
Grade (0-5): 5

Student answer: Each node requires an extra pointer (space requirements increased), Insertion or deletion of a node takes a longer (more pointer operations).
Grade (0-5): 5

Student answer: its a little more confusing. The special cases at the end and beginning become more difficult to do.
Grade (0-5): 3

Student answer: increased actions to add and remove elements to the linked list.
Grade (0-5): 3

Student answer: Inserting and deleting in a double-linked list is more involved, and has special cases at the beginning and end.
Grade (0-5): 3

Student answer: The main disadvanate is that if hard to remove all items in the list.
Grade (0-5): 2

Student answer: each node requires an extra pointer, taking up more storage.  insertions and deletions require more pointer operations.
Grade (0-5): 5

Student answer: in a doubly linked list there are twice as many pointers for each element , therefore more memory is used
Grade (0-5): 5

Student answer: The process of adding and removing Nodes in a Doubly linked list is more complex than in a basic linked list
Grade (0-5): 3.5

Student answer: Double linked lists require more space per node, and their elementary operation are more expensive
Grade (0-5): 5

Student answer: 1- each node requires an extra pointer, requiring more space<br>2- the insertion or deletion of a node takes a bit longer, more pointer operations
Grade (0-5): 5
Question: What is the main disadvantage of a doubly-linked list over a basic linked list?
Instructor answer: Extra space required to store the back pointers.

Student answer: It takes up twice the storage needed.
Grade (0-5): 5

Student answer: using more pointers to enable the backward movement takes up more memory, having more pointers make it slightly more work to add or remove a node from the list
Grade (0-5): 5

Student answer: increased memory requirements, slightly more complicated when modifying elements in the list
Grade (0-5): 5

Student answer: not answered
Grade (0-5): 0
Question: What is a stack?
Instructor answer: A data structure that can store elements, which has the property that the last item added will be the first to be removed (or last-in-first-out)

Student answer: A data structure for storing items which are to be accessed in last-in first-out order that can be implemented in three ways.
Grade (0-5): 5

Student answer: A stack is an abstract data type that is based on the principle that the last element inserted into the stack will be the first element removed from the stack.
Grade (0-5): 5

Student answer: Stores a set of elements in a particular order.
Grade (0-5): 2

Student answer: An ADT whose most recently inserted item is the first item removed or retrieved. This property is called last in, first out (LIFO). Items enter and leave a stack at its top.
Grade (0-5): 5

Student answer: A list in which only the top (or last item added) can be modified.
Grade (0-5): 4.5

Student answer: a stack is a data structure that uses push to insert an item and pop to remove ad item. The stack use a last in first out structure for inserting and removing items.
Grade (0-5): 5

Student answer: A data structure that stores data using LIFO.
Grade (0-5): 5

Student answer: A stack is similar to an array, but does not allow for random access. Stacks only allow a user to retrieve the last item put into the stack. Last in, fist out.
Grade (0-5): 5

Student answer: Stores a set of elements in a particular order. Stack principle: LAST  IN  FIRST  OUT. It means: the last element inserted is the first one to be removed.
Grade (0-5): 5

Student answer: A stack is an ADT that stores a set of elements in a particular order.
Grade (0-5): 2.5

Student answer: a data type that stores a set of elements in a certain order, last in, first out.
Grade (0-5): 5

Student answer: a data structure that moves elements in last in first out
Grade (0-5): 5

Student answer: Stores a set of elements in a last in first out order.
Grade (0-5): 5

Student answer: A list that can be added to or removed from only from the top.
Grade (0-5): 5

Student answer: a stack is an Abstract data type which operates on a last in first out basis for storing a list of objects, and does not support ( at least in the pure stack) peeking at a element without removing the rest of the stack first.
Grade (0-5): 5

Student answer: Stores a set of elements in a particular order<br>based on the principle of Last In First Out (LIFO).
Grade (0-5): 5

Student answer: an object list that stores elements in a particular order, the first object inserted is at the bottom with the last object at the top so the first object in is the last object out.
Grade (0-5): 5

Student answer: An ADT that stores a set of elements in a particular order. The stack principles are LIFO. The last item inserted in the list is the first out.
Grade (0-5): 5

Student answer: An abstract data type that stores a set of elements in a particular order.
Grade (0-5): 2.5

Student answer: a collection of data to be executed in the order of last in first out
Grade (0-5): 5
Question: What is a stack?
Instructor answer: A data structure that can store elements, which has the property that the last item added will be the first to be removed (or last-in-first-out)

Student answer: A stack is a data structure that allows data members to be added or removed one at a time, and in order. They are a "Last in First Out" structure.
Grade (0-5): 5

Student answer: Stores a set of element in a particular order
Grade (0-5): 2

Student answer: is a list of element where the first one to be removed is the last one inserted
Grade (0-5): 5

Student answer: A data structure that puts elements in a list and only allows the user<br> access to the last element.
Grade (0-5): 4.5

Student answer: a finite ordered list with zero or more elements
Grade (0-5): 2

Student answer: A storage container that holds objects in a certain order, which has a LIFO priority
Grade (0-5): 5

Student answer: Stacks are a type of container adaptors, specifically designed to operate in a LIFO context (last-in first-out), where elements are inserted and extracted only from the end of the container.
Grade (0-5): 5
Question: What are the two main functions defined by a stack?
Instructor answer: push and pop

Student answer: Push and pop are two main functions defined in a stack
Grade (0-5): 5

Student answer: Push which inserts an element on the top of the stack and pop which removes the last inserted element from the stack.
Grade (0-5): 5

Student answer: Push and pop.
Grade (0-5): 5

Student answer: Pop function and Push function
Grade (0-5): 5

Student answer: push and pop.
Grade (0-5): 5

Student answer: push (insert an item)<br>pop (remove an item)
Grade (0-5): 5

Student answer: Adding a new item and removing the item
Grade (0-5): 5

Student answer: Push (insert) and pop (retrieve).
Grade (0-5): 5

Student answer: push and pop.
Grade (0-5): 5

Student answer: Push and Pop.
Grade (0-5): 5

Student answer: pop and push
Grade (0-5): 5

Student answer: push (add an element)<br>pop (remove an element)
Grade (0-5): 5

Student answer: Push and pop.
Grade (0-5): 5

Student answer: pop and push
Grade (0-5): 5

Student answer: push ( to add to a item the Stack)<br>Pop  ( to pull the last item added from an array. )
Grade (0-5): 5

Student answer: pop and push
Grade (0-5): 5

Student answer: push and pop, push puts an object into the list, and pop takes the last object off.
Grade (0-5): 5

Student answer: Push and Pop are the two main functions of a stack
Grade (0-5): 5

Student answer: Push and Pop
Grade (0-5): 5

Student answer: push, which adds an element to the stack... and pop which takes an element off the stack
Grade (0-5): 5

Student answer: Push and Pop, which add and remove data from the stack, respectively.
Grade (0-5): 5

Student answer: push and pop
Grade (0-5): 5

Student answer: pop - to remove item<br>push - to insert an element<br>
Grade (0-5): 5

Student answer: Pop and push
Grade (0-5): 5

Student answer: pop and push
Grade (0-5): 5

Student answer: push - adds an item to the top of the stack<br>pop - removes the top item from the stack
Grade (0-5): 5

Student answer: push and pop.<br>Push adds a given node to the top of the stack leaving previous nodes below. Pop removes and returns the current top node of the stack
Grade (0-5): 5
Question: How can you implement a stack with an array?
Instructor answer: Keep the top of the stack toward the end of the array, so the push and pop operations will add or remove elements from the right side of the array.

Student answer: An array has a fixed size.  You can add and delete elements to the end of the array and you use a pointer to keep track of the last element added.  Each time you add or delete an element you update the pointer and check if it is equal to the max size of the array.
Grade (0-5): 5

Student answer: By implementing an array of a pre-defined size with the bottom stack element stored at element 0 and the last element stored in the array is the top. You increment top when an element is pushed and you decrement it when an item is popped.
Grade (0-5): 5

Student answer: If you use a dynamically allocated array, you must provide a destructor and copy constructor.
Grade (0-5): 3

Student answer: Create a int value that stores the "head" of the stack. Increment the top when one element is pushed and decrement after it is popped.
Grade (0-5): 5

Student answer: Use a pointer that always points to the end of the array list for push/pop modifications.
Grade (0-5): 4.5

Student answer: if you used an array to implement a stack when you add an element just add it to the end of an array and remove items from end of array also.
Grade (0-5): 4.5

Student answer: You predetermine the size of the stack as you would an array.  This type can not grow.
Grade (0-5): 2.5

Student answer: Declare a variable that points the last item in the array, which increases (++) when items are pushed onto the stack, and decreases (--) when an item is popped off the top.
Grade (0-5): 5

Student answer: Allocate an array of some size. The bottom stack element is stored at some element. Last index in the array is the top. Increment top when one element is pushed, decrement after pop.<br>
Grade (0-5): 4.5

Student answer: You allocate an pre-defined array, the bottom element is stored at element 0, and the last index is the head.
Grade (0-5): 4

Student answer: Make an array, make the bottom at spot 0, make the last spot in the array the top, and increment top when you ad
Grade (0-5): 4.5

Student answer: treat the beginning of the array as the beginning of the stack
Grade (0-5): 4

Student answer: Use an index value called top to keep track of the last element in the array.
Grade (0-5): 4.5

Student answer: create an array and implement pointers that point to the next list item down and stack them up.
Grade (0-5): 2

Student answer: for efficiency it is easiest to implement the left to right method, with the right most item being the one that is retrieved when a pop is performed, and a push places an object on the furthest element.
Grade (0-5): 3.5

Student answer: Create an array based on a pre-defined size N<br>There can't be more elements than N.<br><br>Bottom stack element stored at element 0<br>last index in the array is the top<br><br>Increment top when one element is pushed, decrement after pop
Grade (0-5): 4.5
Question: How can you implement a stack with an array?
Instructor answer: Keep the top of the stack toward the end of the array, so the push and pop operations will add or remove elements from the right side of the array.

Student answer: with the element added to the array, so that the last element added is at the end, and when the element is popped it takes the last element off the array
Grade (0-5): 4

Student answer: Allocate an array of some pre-defined size. Bottom stack element stored at element 0. The last index in the array is the top. Increment top when one element is pushed.
Grade (0-5): 4.5

Student answer: Create an array, size N.  N++ when one element is pushed.  N-- when one element is popped.
Grade (0-5): 4

Student answer: define an array and keep track of a pointer to the last element as items are added
Grade (0-5): 4

Student answer: By allocating an array of predetermined size, and an integer to track the top element of the stack. The bottom member of the stack will go in element 0 of the array, and for each element pushed the "top" tracking integer is incremented.
Grade (0-5): 4.5

Student answer: Allocate an array of some size, bottom stack element stored at element 0
Grade (0-5): 4

Student answer: you store the stack in the array but you have to keep in mind the first element
Grade (0-5): 3

Student answer: You keep track of the last item entered into the array and do not<br> allow the user access to the other parts of the array.
Grade (0-5): 4

Student answer: using arrays, you are pushing one int at a time into the stack until you get to the end of your array
Grade (0-5): 4

Student answer: by having a max number of elements, allocating an array with that number of elements, storing the elements starting at 0, and keeping track of how many elements are currently in the list
Grade (0-5): 4

Student answer: Stack usually holds a bunch of items with the same type, therefore u can use an array, to hold the content of the stack and an integer top that holds the index of the element at the top of the stack. u Choose an array size. Then the sequence of operations used. u have to decide what data types are needed for this stack data structure.
Grade (0-5): 3
Question: How can you implement a stack with a list?
Instructor answer: Keep the top of the stack pointing to the head of the linked list, so the push and pop operations will add or remove elements at the beginning of the list.

Student answer: You can add an element to the end of the linked list and update a pointer called top each time you modify the list.
Grade (0-5): 3

Student answer: You implement a list in which the head pointer points to the element most recently pushed onto the list and the pop function changes the head pointer to point to the next to last element in the list and removes the element head pointer previously pointed to.
Grade (0-5): 5

Student answer: This is the implementation of the stack using single linked list.<br>  The operations performed on a stack are<br><br>  1)push(): This is the function which is for insertion(pushing)of an element into stack<br>              <br>      It is similar to the insertion of an element at the end of a single linked list<br>     <br>            see  the function insert_end() in the program for operations of single linked list<br><br>  2)pop(): This is the function which is for deletion(popping up) of an element from the stack<br><br>           It is similar to the deletion of an element at the end of a single linked list<br><br>     see  the function delete_end() in the program for operations of single linked list<br><br>  3)stack_display():This is the function which is for displaying the elements of a stack
Grade (0-5): 4

Student answer: Using nodes to keep track of the head of the stack. Then using Push( ) and Pop ( ) to create the stack as needed.
Grade (0-5): 4

Student answer: Use the head as the top of the stack, only modify the head when you push/pop... push would add a new item to the head, pop would remove the item from the head.
Grade (0-5): 4.5

Student answer: you implement a stack with a list by changing the pointer to the first element of the list to the new item and move the pointer from the top of the stack to the next item when removing an item.
Grade (0-5): 4.5

Student answer: You dynamicly create space as the stack grows.  The stack can be as long as you need.
Grade (0-5): 2.5

Student answer: Declare a pointer that points to the head of the linked list, only add and remove nodes from the beginning of the list.
Grade (0-5): 5

Student answer: Creating a linked list. Add an element to the top of the stack when pushing and deleting an element when popping.
Grade (0-5): 4

Student answer: A singly-linked list is already a lot like a stack, it just depends on the way you address moving the head.
Grade (0-5): 3.5

Student answer: make a list, make the bottom the head, add on the end and make the end top
Grade (0-5): 3.5

Student answer: use the add function with a list as the beginning of the stack and remove for pop
Grade (0-5): 4.5

Student answer: Use head as the top and push and pop nodes from the head.
Grade (0-5): 4.5

Student answer: create a node based list that points to the next list item down.
Grade (0-5): 1.5

Student answer: have the head of the list be the last item added, and a push just adds a new head.
Grade (0-5): 4.5