In the following code, assume myStack is a stack that holds integers. What would be the contents of the stack after the following operations, indicating what element is currently at the top and the bottom of the stack. myStack.
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In the following code, assume myStack is a stack that holds integers. What would be the contents of the stack after the following operations, indicating what element is currently at the top and the bottom of the stack.
myStack.push(1);
myStack.push(2);
myStack.push(3);
myStack.pop();
myStack.push(4);
myStack.push(5);
myStack.pop();
2
1 <- Bottom
3
1 <- Bottom
3
2 <- Bottom
2
1 <- Bottom
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Solved in 2 steps
- Suppose the following operations were performed on an empty stack:pus h(8);pus h(?);pop();push (19);pus h(21);pop();Insert numbers in the following diagram to show what will be stored in the staticstack after the operations have executedA letter means enqueue and an asterisk means dequeue in the following sequence. Give the sequence of values returned by the dequeue operations when this sequence of operations is performed on an initially empty LIFO stack: S O * B E A U * * * T * I F * * U L *. What is front and back values? (Write your answer in uppercase letters separated by comma(,) only. No need to write "front" and "back".) *How to answer the following questions? Which of the following statements is a legal declaration/instantiation of a Stack object? A. StackInterface<String> stack; B. StackInterface<String> stack = new ArrayBoundedStack<String>(3); C. StackInterface<String> stack = new StackInterface<String>; Evaluate the following postfix expression: 6 4 + 3 10 * 2 2 2 - + * + What is the highest number of elements on our stack at any one time A. 2 B. 3 C. 4 D. 5 While evaluating the following postfix expression: 6 4 + 3 10 * + 2 2 - + how many times is the push operation called? A. 1 B. 6 C. 9 D. 11 E. 18 How did you decide to handle the possibility of stack underflow? A. Assume as a precondition that it will not occur. B. Throw a StackUnderflowException if it occurs. C. Provide an isEmpty operation so a client can prevent underflow. Ignore it. D. Throw a StackUnderflowException if it occurs, and provide an isEmpty operation so a…
- Which of the following is NOT an operation supported by a stack interface? Push Clear Insert PeekTrue or False For each statement below, indicate whether you think it is True or False. provide a description of your answer for partial credit in case you are incorrect. 1) Given a stack implemented as an array, and the following functions performed: Push(A), Push (B), Push(C), Pop(), Push(D), Push(E), Pop(), Push(F) a. The array will be [A][B][D][F] and the “top” of the stack will be at index 3 where [F] is b. The next element that will be removed when Pop is called will be A c. If we Push(G), [G] will be inserted at index 0What will be the stack content after following operations: Push 5 Push 8 Pop Push 1 Push 12 Pop
- What are the contents of the stack num after the following statements execute? Assume that NumStack is a class that implements the interface StackInterface. StackInterface num = new NumStack<>(); num.push(111); num.push(num.pop()); num.push(222); num.push(333); num.push(444); num.push(num.pop()); int n = num.pop(); num.push(num.peek()); q2. Show the contents of the stack as you trace the algorithm checkBalance, given in Segment 5.8, for each of the following expressions: a. a {b [c * (d + e)] - f } b. {a (b * c) / [d + e] / f )- g} c. a {b [c - d] e ]) f q3. Imagine a linked implementation of the ADT stack that places the top entry of the stack at the end of a chain of linked nodes. Describe how you can define the stack operations push, pop, and peek so that they do not traverse the chain.Which one of the following node is considered the top of the stack if the stack is implemented using the linked list? A. First node B. Second node C. Last node D. None of the aboveAssume s1,s2 are two stacks and we write s1=s2 , if the class stack based on linked list then Select one: a. This statement is good when s2 has large number of items and s1 has small number of items b. This statement is good when s2 has small number of items and s1 has small number of items c. This statement is good when s2 has large number of items and s1 has large number of items d. This statement is good when s2 has small number of items and s1 has large number of items
- If operations given below is applied on a stack, what will be the result? For array implementation we need is_full() operation, however in linked list case this function is not required. Explain the reason createStack()push(1)push(2)push(1)peek()push(2)pop()pop()pop()push(2)push(1)push(2)True or False For each statement below, indicate whether you think it is True or False. If you like, you can provide a description of your answer for partial credit in case you are incorrect. Given a stack implemented as an array, and the following functions performed: Push(A), Push (B), Push(C), Pop(), Push(D), Push(E), Pop(), Push(F) The array will be [A][B][D][F] and the “top” of the stack will be at index 3 where [F] is The next element that will be removed when Pop is called will be A If we Push(G), [G] will be inserted at index 0 Given a queue implemented as an array with a maximum capacity of 5 elements and O(1) insert and remove, and the following functions are performed: Insert(7), Insert(6), Insert(5), Insert(4), Remove(), Remove(), Insert(3), Insert(2), Insert(1), Remove() The removeIndex value will be index 4 The array will be [2][1][ ][4][3] The insertIndex value will be index 2 Given a priority queue implemented as a standard linked list with only a…QueueWe are given a class stack.1 class [ ’ a ] stack = object2 val mutable seznam =([]: ’ a list )3 method empty =[]= seznam4 method pop =let r = List . hd seznam in seznam < - List . tlseznam ; r5 method push elm = seznam < - elm :: seznam6 method reverse = seznam < - List . rev seznam7 end ;;The above stack type includes the methods needed for this exercise. Notethat the method reverse reverses the elements stored on the stack and themethod empty returns true if and only if the stack is empty.Implement a class queue with the following type1 class [ ’ a ] queue :2 object3 method dequeue : ’a4 method enqueue : ’a -> unit5 end1You may use a free service accessible on https://try.ocamlpro.com/.1The class queue uses two instances of a class stack. The first stack is usedfor storing the inserted new element. The second stack is used for retrievingthe elements from the queue. If the second stack is empty and the first is not,then the first is reversed and stored as the second.…