EBK STARTING OUT WITH C++
EBK STARTING OUT WITH C++
8th Edition
ISBN: 8220100794438
Author: GADDIS
Publisher: PEARSON
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Chapter 18, Problem 2PC
Program Plan Intro

Dynamic Stack Template

Program Plan:

Main.cpp:

  • Include required header files.
  • Inside the “main ()” function,
    • Create an object named “dstack” for stack.
    • Declare a variable named “popElem”.
    • Push 3 elements inside the stack using the function “push ()”.
    • Pop 3 elements from the stack using the function “pop ()”.

DynStack.h:

  • Include required header files.
  • Create a template.
  • Declare a class named “DynStack”. Inside the class
    • Inside the “private” access specifier,
      • Give structure declaration for the stack
        • Create an object for the template
        • Create a stack pointer name “next”.
      • Create a stack pointer name “top”
    • Inside the “public” access specifier,
      • Give a declaration for a constructor.
        • Assign null to the top node.
      • Give function declaration for “push ()”, “pop ()”,and “isEmpty ()”.
  • Give the class template.
  • Give function definition for “push ()”.
    • Assign null to the new node.
    • Dynamically allocate memory for new node
    • Assign “num” to the value of new node.
    • Check if the stack is empty using the function “isEmpty ()”
      • If the condition is true then assign new node as the top and make the next node as null.
      • If the condition is not true then, assign top node to the next of new node and assign new node as the top.
  • Give the class template.
  • Give function definition for “pop ()”.
    • Assign null to the temp node.
    • Check if the stack is empty using the function “is_Empty ()”
      • If the condition is true then print “The stack is empty”.
      • If the condition is not true then,
        • Assign top value to the variable “num”.
        • Link top of next node to temp node.
        • Delete the top most node and make temp as the top node.
  • Give function definition for “isEmpty ()”.
    • Assign Boolean value to the variable
    • Check if the top node is null
      • Assign true to “status”.
    • Return the status

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