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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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 ...
6
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3answers
680 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
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6
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1answer
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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 ...
4
votes
2answers
119 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
57 views
Which is a better implementation of a stack data structure (based on an array)?
This is a version I made:
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4
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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 ...
6
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1answer
58 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 ...
4
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4answers
250 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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2answers
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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 ...
5
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4answers
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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 ...
4
votes
2answers
110 views
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 ...
6
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4answers
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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 ...
4
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1answer
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Stack with “getMiddle” and “deleteMiddle” operation
Looking for code review, optimizations and best practices.
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4
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1answer
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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
68 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 ...
6
votes
2answers
389 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 ...
3
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2answers
79 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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3
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2answers
153 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
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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)\$ - ...
6
votes
2answers
419 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
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How does this naive stack implementation look?
Consider this naive stack implementation in Elixir:
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5
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1answer
143 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 ...
7
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3answers
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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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3
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1answer
68 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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7
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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
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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
344 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 ...
12
votes
7answers
3k views
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 ...
6
votes
1answer
148 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 ...
4
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2answers
126 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 ...
7
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2answers
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3
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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 ...
5
votes
3answers
486 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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1
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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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4
votes
1answer
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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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4
votes
4answers
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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 ...
5
votes
1answer
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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 ...
5
votes
2answers
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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 ...
4
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1answer
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A working stack allocator
Here's an absolutely essential piece of C++ lore, a stack allocator, that will allow you to, say, allocate strings and vectors on the stack. There are 2 stack allocators I know of, here and here.
The ...
8
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2answers
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How can this simple coroutine implementation be improved?
This is a quick and dirty implementation of coroutines that implements yield by saving and restoring the stack to and from the heap. Here's an earlier version, which does the most naive possible ...
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votes
3answers
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Review implementation of stack by using pointers in C
After I had my code for stack implementation by array reviewed I wrote stack implementation by using pointers. Here's my code. Any suggestions for improvement are welcome.
I'll be adding updated ...
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2answers
678 views
Review implementation of stack by using array in C
This question has become long after many updates. Click here to go down.
I have implemented stack using arrays in C. Please give me suggestions on how to improve it. The purpose of writing it is ...
