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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Stack Implementation in C++
This is my first template implementation. I'm trying to learn C++ and Algorithms. Any constructive criticism on code quality, readability is welcome. Everyone has their own style, but there are ...
7
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1answer
59 views
Stack using an array
I designed a simple drop-out stack a while back. Basically, I just want to get a few opinions on whether or not this is a good implementation and whether I am understanding the concept of a drop-out ...
6
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3answers
584 views
C++ Stack using template
I'm learning C++, so I wrote a stack with the help of templates. I'm wondering if there is anything I can improve or if I did something vastly wrong.
Stack.h
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4answers
299 views
A data structure with push(int x), pop(), min() and max() in O(1)
I have written this Java code for a data structure which includes 3 stacks to supports four operations in \$O(1)\$: push(int x), ...
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3answers
37 views
Balanced expression checker
This program detects whether an expression is balanced or not. I would like to know how I can make this more efficient.
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1answer
74 views
Implemented Stack using array
I'm going to job interviews soon. How I can improve my coding style and write better code?
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1answer
53 views
Priority stack in Java
I have this (simple) data structure that maintains multiple LIFO stacks. Each such stack is assigned a priority. The less is the value of a priority key, the higher the priority. Pushing operation ...
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1answer
273 views
Stack implementation using Swift
I would like to request some code review and feedback on a stack implementation using Swift.
Disclaimer: I might have not used protocols, optional unwrapping and error and ...
5
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1answer
55 views
Stack implementation using linked list in C++
I'd like some feedback for the code I wrote. I haven't programmed in C++ for two years.
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2answers
45 views
ADT Stack with a doubly circular linked list
I have managed to implement an ADTStack with a circular doubly linked list. I would like to know whether there are things I could have done better or, I should ...
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2answers
200 views
Stack implementation with a linked list
Could anyone provide any constructive criticism? I'm trying to get a jump on data structures before classes start.
One thing is that I should add a copy constructor and assignment operator. Changes ...
4
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2answers
44 views
ADT Stack with LinkedList
I am currently preparing for my exam and I am trying to implement some abstract data types with linked lists as preparation for the exam. I found an older exam from my prof. and he wants us to ...
8
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3answers
254 views
Generic stack in C
I tried to implement a generic stack in C using void pointers and tried to keep it as simple as possible by delegating all responsibility to the caller of the ...
6
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1answer
116 views
Lock-free bounded stack in C++11
Here is a classical attempt to implement a lock-free stack (based on this article). I rewrote it in C++11 and also tried to add memory orders which I would like to confirm to be correct.
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4
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1answer
84 views
Lock-free bounded stack atomics
I was thinking about using very basic bounded (preallocated) stack to keep track of my threads IDs in correct LIFO order. I was wondering if my implementation is thread safe:
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3answers
1k views
Java and C++ stack implementations with dramatically different performance
I'm developing a small programming language for use in any project I have where I feel a small scripting language could be used well. I've written two emulators for the language, one in C++ and one in ...
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1answer
122 views
C-style generic stack implementation in C#
I saw a nice generic stack implemented in C, in Stanford's CS107 Programming Paradigms course, so I tried to rewrite it in C#:
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3answers
187 views
Stack with getMin method
This should implement a stack that has a \$O(1)\$ getMin method. I used an auxiliary stack. Please provide comments on my solution.
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1answer
548 views
Sort a stack in ascending order
Sort a stack in ascending order. You may only use one additional stack to hold items.
Any comments on my solution?
Worst case complexities:
Memory complexity: O(n)
Runtime complexity: O(n^2)
Also, ...
2
votes
1answer
166 views
C++ program that recognizes a context-free language
This program (C++) was for a class project. A program that recognizes a given context-free language by implementing a pushdown-automaton (PDA).
The PDA recognizes the following language:
S → $T$
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3
votes
1answer
121 views
Fully Generic C++ Stack Implementation Without Lists, Arrays, or Vectors
I'm trying to write a fully generic Stack in C++. I'm not sure if this is the best way to do this.
Right now I know that the Pop method needs improvement since ...
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2answers
454 views
Implementing a stack and using it to print alternate elements in reverse
Challenge:
Implement a stack interface.
Specifications:
The interface should have ‘push’ and ‘pop’ functions.
Your task is to ‘push’ a series of integers and then ‘pop’ and print every ...
3
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1answer
98 views
3-stack implementation with a single array
I'm teaching myself data structures and would really appreciate some feedback on my stack implementation.
A couple of things I'm not sure if I should be doing:
creation of the array and pointer ...
5
votes
3answers
1k views
Stack Implementation in Python
I have written a simple stack implementation and would like some feedback as to what I could improve in my code and coding practices.
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2
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4answers
162 views
Palindromes with stacks
I'm creating a simple function to verify whether or not a string is a palindrome, and must use stacks in solving it.
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1answer
48 views
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1answer
71 views
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1answer
111 views
Stack with Array
Just coded up a simple Stack using an Array in Java for practice. Other than the lack of JavaDoc (still need to learn that part), did I cover all the bases?
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1answer
53 views
Make a new design of Stack with a new function
I am doing some coding exercise, and I am not sure if I have met the requirement. Can someone help me to figure it out?
How would you design a stack which, in addition to push and pop, also has a ...
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1answer
71 views
Popping from a list in state while a condition is true
I'm dealing with data that stores its state as a String, treating the string like a stack. I also have to combine that with error handling.
To that end, I'm using ...
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1answer
172 views
RoundStack Implementation
I just recently made an attempt at implementing what I have been led to understand is called a RoundStack, simply meaning contrary to .NET Stack's default behavior ...
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3answers
115 views
Stack implementation using vectors and templates with no overflow version 1.3
Below is the code for stack along with one or two extra options. Kindly let me know if there are any concerns/critical issues. Below are the links for previous versions.
Version 1.0
Version 1.1
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3answers
147 views
Stack implementation using vectors and templates with no overflow version 1.2
Below is the code for stack along with one or two extra options. Kindly let me know if there are any concerns/critical issues. Below are the two link for previous versions.
Original
Version 1.1
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2answers
428 views
Stack implementation using vectors and templates with no overflow version 1.1
I have modified my code as per the suggestion given by some of the developers. Let me know if there are any further concerns or scope for improvements.
Original Version
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1answer
50 views
Stack without use of STL - Version 1.1
I had already posted this question at here
and have tried to incorporate some of the suggestions given. Kindly let me know if there are still some concerns/suggestions/improvements in the code ...
4
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2answers
121 views
Stack implementation using vectors with no overflow version 1.0
This is an implementation of a stack where I have used vectors. Can anyone please review it and let me know how I can improve this code and overall coding practice?
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3answers
441 views
Stack without use of STL - version 1.0
This is a basic implementation of a stack. Can anyone please review it and let me know how I can improve this code and overall coding practice?
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1answer
1k views
Implementing a stack using a simple array, dynamic array and linked list
I have implemented a stack using simple array, dynamic array and linked list. I am requesting a review of this code.
Interface for stack:
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2answers
248 views
Balance braces method
This is a continuation of this question, at least the first part of that question.
I want to check if everything in the new code is right or if there are other way to make it better.
Exercise
The ...
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4answers
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Stack with a minimum
A practice interview question:
How would you design a stack which, in addition to push and pop, also has a function getMin which returns the minimum element? Push, pop and min should all operate ...
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3answers
126 views
Superior improved stack implementation using a linked list
This is a followup to
Improved stack implementation using a linked list
Simple stack implementation using linked list
Please review my hopefully improved stack implementation
As suggested by ...
11
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3answers
819 views
Implementation of an Stack without Linked Lists in C
I'm a beginning C programmer. As an exercise, I have attempted to implement a stack of strings in C. This is my first real exercise working with pointers. I looked at some other similar posts on here, ...
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3answers
533 views
Improved stack implementation using a linked list
This is a followup to
Simple stack implementation using linked list
Since my original stack implementation has lots of bugs that I did not notice, I thought I would recreate and try to improve it. ...
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3answers
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2answers
1k views
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2answers
220 views
Parenthesis checker
I am working on a parenthesis checker program in Java that reads in a text stream from standard input and uses a stack to determine whether or not its parentheses are properly balanced. For example, ...
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2answers
324 views
Implement a stack using a linked list
I am to implement a stack in C using a linked list. My code is below. My design:
I use stack_ prefix to each function, and each function has a ...
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2answers
712 views
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
202 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 ...
