A stack is a last in, first out (LIFO) abstract data type and data structure. Perhaps the most common use of stacks is to store subroutine arguments and return addresses.

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Linked list implementation of a stack

I am working on a basic linked list implementation of a stack of ItemType (currently set to double but can be changed) values. The stack code will then be used in a ...
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1answer
84 views

XML Writer in C++ - Updated

I recently posted about a basic XML writer in C++ and got a lot of great feedback. Well, I'm back with an updated version of the XML writer that is a bit less basic, but hope it's better than the ...
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1answer
226 views

Generic Stack implementation in C-style C++

I implemented generic stack in C. Seems to work fine. It doesn't work for strings, though. It was compiled using Visual C++. Implementation: ...
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718 views

Unsafe Stack in C#

I was interested to see if it was possible to implement an unsafe stack in C#, so I wrote this: ...
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Delimiter-matching using Stack in Java

Is this code okay? ...
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6answers
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Reversing a String using Stack

Is this code okay? ...
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4answers
386 views

Array Implementation of Stack

I've implemented the basic logic of a stack data structure. How can I make this code more generic? Is there any better way to display the stack contents? StackMethods.java ...
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4answers
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Dynamically-sized stack - follow-up 3

Follow up of - Dynamically-sized stack - follow-up 2 I've took the tips given to me, and what I did now is: Use same case type for type stack and it's functions Returning 1 if push failed due to an ...
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3answers
777 views

Stack implementation using a linked list

To understand the concept, I implemented the stack operations using a linked list. Please review the code and tell me your suggestions. Node.java ...
6
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1answer
60 views

Dynamically-sized stack - follow-up 2

Follow up of - Dynamically-sized stack - follow up I've took the tips given to me, and what I did now is: changing the function names to have a prefix making the ...
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2answers
128 views

Dynamically-sized stack - follow up

Follow up of - Which is a better implementation of a stack data structure (based on an array)? Please review my stack implementation from before. I've made it dynamically sized if needed and made a ...
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1answer
60 views
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1answer
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Stack-based mini-stack

I've created a MiniStack to assist in removing recursion from routines using a manual stack. Obviously if the stack is an object it lives on the heap and its ...
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59 views

Traversal of descendants using stack [closed]

I have a type Unit which has a property ChildUnits that returns the children of the unit instance, as a ...
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4answers
289 views

LinkedList to be used in a stack or queue

This all works. Just wanted to make sure I didn't miss anything. Coming from C++ and working my way through Algorithms, 4th ed. Here is my LinkedList class: ...
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Layer Stack class to practice std::shared_ptr

The following three source files is to define and test a class StackLayer. While it was written in a need for scalable layer-based architecture design, it was also ...
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Stack implementation using only one queue in C

We start with an empty queue. For the push operation we simply insert the value to be pushed into the queue. The pop operation needs some manipulation. When we need to pop from the stack (simulated ...
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Stock span problem

The stock span problem is a financial problem where we have a series of n daily price quotes for a stock and we need to calculate span of stock’s price for all n days. The span Si of the stock’s ...
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4answers
174 views

Stack with 'getMinimum' operation

Design a Data Structure SpecialStack that supports all the stack operations like push(), pop(), isEmpty(), isFull() and an additional operation getMin() which should return minimum element from the ...
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1answer
71 views

Stack with “getMiddle” and “deleteMiddle” operation

Looking for code review, optimizations and best practices. ...
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1answer
62 views

Implement stack using a linked list

I am trying to implement Stack using a linked list. Looking for code-review, best practices and optimizations. ...
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1answer
85 views

Find the Next Greatest Element

Given an array, print the Next Greater Element (NGE) for every element. The Next Greater Element for an element x is the first greater element on the right side of x in array. Elements for which no ...
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2answers
398 views

Stack challenge - improving memory consumption

I am working on this problem: Stacks Imagine, that you are employed by a software development company. You work now on the famous "D++ project", which is devoted to the creation of a new ...
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133 views

Class that implements a queue using two stacks

I am looking for a review of my code that implements a MyQueue class which implements a queue using two stacks. ...
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2answers
161 views

How is my Java code for stack implementation?

The following example shows how to implement stack by creating user defined push() method for entering elements and pop() method ...
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6answers
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Implementing a Stack in Java for Technical Interview

This code is based off the Stack implementation in Chapter 3 of Cracking The Coding Interview. I modified the code to make it compile and give me the correct output. I'd appreciate any feedback on ...
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2answers
113 views

Stack implementation using a queue

I've implemented a stack using a queue. Time complexity: \$O(n)\$ - push(), where n is the number of elements in the queue \$O(1)\$ - ...
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2answers
601 views

STL Stack Implementation

I implemented std::stack from the STL for deeper understanding of the language and memory since I still am only a beginner. I implemented the stack using a singly ...
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3answers
218 views

How does this naive stack implementation look?

Consider this naive stack implementation in Elixir: ...
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1answer
151 views

Managing People in a SimCity Clone

So I am working through a few different game ideas as I learn programming, and I could definitely use some feedback on my latest project. This is a simple SimCity clone. So far I have created a City ...
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Stack implementation using an array

I am trying a stack implementation using an array. I want to know if this approach is OK or if there is a logical problem. This program is working fine. ...
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1answer
73 views

Infix to postix conversion

I'm looking for code review, optimizations and best practices. Also verifying complexity to be O(n), where n is the string length. ...
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3answers
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Implementation of stack using pointers

Please review my code and let me know how I can possibly improve it. ...
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1answer
374 views

Stack implemented using linked list in x86_64 assembly

I wrote a stack implementation using a singly linked list in x86_64 assembly. This stack supports the usual push/pop operations ...
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2answers
384 views

Balanced parentheses

Given an expression string exp, write a program to examine whether the pairs and the orders of "{","}","(",")","[","]" are correct in exp. For ...
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7answers
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Check for balanced parentheses

Given an expression string exp, write a program to examine whether the pairs and the orders of "{","}","(",")","[","]" are correct in exp. For ...
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1answer
164 views

Functional, but not recursive, tree traversal

To learn tree traversal i implemented os.walk, tail-recursive and stack-based. Unfortunately Python doesn't support tail call optimization. How do i rewrite my ...
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2answers
140 views

Retrieve min from stack in O(1)

I wrote some Python code to solve the following problem. I'm curious to see if someone else can find a better solution, or critique my solution. How would you design a stack which, in addition to ...
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2answers
384 views

Int stack implementation

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2answers
133 views

Dynamic stack in C - new version

Not long ago, I posted this dynamic stack for review. Now I wrote a new version, which is hopefully a better one. Please take a look and let me know how I could improve performance and increase code ...
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3answers
588 views

Dynamic stack implementation

I wrote this code for a dynamic stack and would like to know what would be better if done differently. It can increase memory by a percentage and/or fixed value when needed. It can also be set to not ...
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2answers
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1answer
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Postfix evaluation using a stack

I just wrote the code to evaluate a postfix expression and would like it if someone reviews it for me, it works perfectly fine but I'm having trouble adding the character "=" at the end. ...
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1answer
262 views

Multi producer/consumers lockfree stack

Can you please take a look at the following x86-64 C++ code which should implement a multi consumer/produce lockfree stack? Do you think I have missed anything? ...
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Reviewing my implementation of a stack using linked list

I have been studying data structures, and I'm new to this. Here is my code for the push and pop operations. I considered using a node=top, so that I can avoid O(n) operations for the push (i.e. ...
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2answers
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Is it needed to “beautify” this Stack implementation?

I'm just learning OOP, and I have an assignment to create a Stack. I came up with the following. Is it "beauty" enough, or to "schooly". Where can I evolve? This is the class: ...
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2answers
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Stack implementation using linked list

This is a working stack implementation using a linked list. I'm just curious to know if this is a good way of doing it. Any suggestions are welcome. Can we keep track of the number of elements in ...
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1answer
305 views

How is my implementation of an immutable stack?

Below is my implementation of an immutable stack class. The reverse function is trying to return a stack with all elements reversed. Is my implementation good? Maybe the reverse function can be ...
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2answers
1k views

Linked stack implementation in C++

Please feel free to be as harsh as possible. Implementation file: ...
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0answers
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x86_64 assembly print integer stack allocation [closed]

I have made this simple assembly program that prints an integer in hexadecimal. It works, but I don't understand why it works with only a stack size of 15, when to print a 64 bit integer including ...