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create stack data structure

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Juan D Khusuma answered on May 10, 2022 Popularity 9/10 Helpfulness 1/10

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create stack data structure

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begin
 if stack is full
    return
 endif
else  
 increment top
 stack[top] assign value
end else
end procedure

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: www.geeksforgeeks.org

Tags: stack structure whatever

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

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create stack data structure

Comment

begin 
  return stack[top]
end procedure

Popularity 10/10 Helpfulness 2/10 Language whatever

Source: www.geeksforgeeks.org

Tags: stack stac

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

stack data structure

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// Simple Stack Array with Interface in Java
public class MyMain{
   
   public static void main(String... args){
      // Create a stack from the stackinterface
      StackInterface myStack = new Stack();
      
      // push items in stack
      myStack.push("A");
      myStack.push("B");
      myStack.push("C");
      myStack.push("D");
      
      // pop item from stack
      System.out.println(myStack.pop());
      
      // peek item from tack
      System.out.println(myStack.peek());
      
      // call the toString of myStack
      System.out.println(myStack);
      
      // push items in stack
      myStack.push("E");
      myStack.push("F");
      myStack.push("G");
      
      // call the toString of myStack
      System.out.println(myStack);
      
      // pop everything from the stack
      // for ( initialize the iterator; condition; increment/decrement)
      for(;!myStack.isEmpty();){
         myStack.pop();
      }
      
      // call the toString of myStack
      System.out.println(myStack);
      
      
   }// end of main
} // end of main


class Stack implements StackInterface{

   // array of string called data, our data is stored inside the array
   String[] data;
   // determines the top element of the stack
   int top;
   
   // custom constructor
   public Stack(int size){
      data = new String[size]; // initialize the array of string, given the size
      top = 0;
   }
   // default constructor
   public Stack(){
      this(10);
   }
   // sentinel methods
   public boolean isEmpty(){
      return top == 0;
   }
   
   public boolean isFull(){
      return top == data.length;
   }
   // standard method names
   public void push(String item){
      data[top++] = item;
   }
   
   public String pop(){
      String item = data[--top]; // get the last item in the array
      data[top] = null; // remove the data inside the array
      return item; // return the item
   }
   
   public String peek(){
      return data[top-1];
   }
   
   @Override
   public String toString(){
      String result = "";
      
      for(int i = 0; i < top; i++){
         result += data[i] + ", ";
      }
      
      return result;
   }
   
} // end of stack

interface StackInterface{
   // sentinel methods
   public boolean isFull();
   public boolean isEmpty();
   
   public void push(String data);
   public String pop();
   public String peek();
} // end of interface

Popularity 10/10 Helpfulness 2/10 Language java

Source: github.com

Tags: java

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Contributed on Sep 13 2022

Jayharron Abejar

0 Answers Avg Quality 2/10

create stack data structure

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// C# program to implement basic stack
// operations
using System;
 
namespace ImplementStack {
class Stack {
    private int[] ele;
    private int top;
    private int max;
    public Stack(int size)
    {
        ele = new int[size]; // Maximum size of Stack
        top = -1;
        max = size;
    }
 
    public void push(int item)
    {
        if (top == max - 1) {
            Console.WriteLine("Stack Overflow");
            return;
        }
        else {
            ele[++top] = item;
        }
    }
 
    public int pop()
    {
        if (top == -1) {
            Console.WriteLine("Stack is Empty");
            return -1;
        }
        else {
            Console.WriteLine("{0} popped from stack ", ele[top]);
            return ele[top--];
        }
    }
 
    public int peek()
    {
        if (top == -1) {
            Console.WriteLine("Stack is Empty");
            return -1;
        }
        else {
            Console.WriteLine("{0} popped from stack ", ele[top]);
            return ele[top];
        }
    }
 
    public void printStack()
    {
        if (top == -1) {
            Console.WriteLine("Stack is Empty");
            return;
        }
        else {
            for (int i = 0; i <= top; i++) {
                Console.WriteLine("{0} pushed into stack", ele[i]);
            }
        }
    }
}
 
// Driver program to test above functions
class Program {
    static void Main()
    {
        Stack p = new Stack(5);
 
        p.push(10);
        p.push(20);
        p.push(30);
        p.printStack();
        p.pop();
    }
}
}

Popularity 10/10 Helpfulness 2/10 Language csharp

Source: www.geeksforgeeks.org

Tags: c# c

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

Comment

# Python program for implementation of stack
 
# import maxsize from sys module
# Used to return -infinite when stack is empty
from sys import maxsize
 
# Function to create a stack. It initializes size of stack as 0
def createStack():
    stack = []
    return stack
 
# Stack is empty when stack size is 0
def isEmpty(stack):
    return len(stack) == 0
 
# Function to add an item to stack. It increases size by 1
def push(stack, item):
    stack.append(item)
    print(item + " pushed to stack ")
     
# Function to remove an item from stack. It decreases size by 1
def pop(stack):
    if (isEmpty(stack)):
        return str(-maxsize -1) # return minus infinite
     
    return stack.pop()
 
# Function to return the top from stack without removing it
def peek(stack):
    if (isEmpty(stack)):
        return str(-maxsize -1) # return minus infinite
    return stack[len(stack) - 1]
 
# Driver program to test above functions   
stack = createStack()
push(stack, str(10))
push(stack, str(20))
push(stack, str(30))
print(pop(stack) + " popped from stack")

Popularity 9/10 Helpfulness 2/10 Language python

Source: www.geeksforgeeks.org

Tags: python py

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

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// C++ program for linked list implementation of stack
#include <bits/stdc++.h>
using namespace std;
 
// A structure to represent a stack
class StackNode {
public:
    int data;
    StackNode* next;
};
 
StackNode* newNode(int data)
{
    StackNode* stackNode = new StackNode();
    stackNode->data = data;
    stackNode->next = NULL;
    return stackNode;
}
 
int isEmpty(StackNode* root)
{
    return !root;
}
 
void push(StackNode** root, int data)
{
    StackNode* stackNode = newNode(data);
    stackNode->next = *root;
    *root = stackNode;
    cout << data << " pushed to stack\n";
}
 
int pop(StackNode** root)
{
    if (isEmpty(*root))
        return INT_MIN;
    StackNode* temp = *root;
    *root = (*root)->next;
    int popped = temp->data;
    free(temp);
 
    return popped;
}
 
int peek(StackNode* root)
{
    if (isEmpty(root))
        return INT_MIN;
    return root->data;
}
 
// Driver code
int main()
{
    StackNode* root = NULL;
 
    push(&root, 10);
    push(&root, 20);
    push(&root, 30);
 
    cout << pop(&root) << " popped from stack\n";
 
    cout << "Top element is " << peek(root) << endl;
     
    cout<<"Elements present in stack : ";
     //print all elements in stack :
    while(!isEmpty(root))
    {
        // print top element in stack
        cout<<peek(root)<<" ";
        // remove top element in stack
        pop(&root);
    }
 
    return 0;
}
 
// This is code is contributed by rathbhupendra

Popularity 10/10 Helpfulness 1/10 Language cpp

Source: www.geeksforgeeks.org

Tags: c++

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

Comment

/* C++ program to implement basic stack
   operations */
#include <bits/stdc++.h>
 
using namespace std;
 
#define MAX 1000
 
class Stack {
    int top;
 
public:
    int a[MAX]; // Maximum size of Stack
 
    Stack() { top = -1; }
    bool push(int x);
    int pop();
    int peek();
    bool isEmpty();
};
 
bool Stack::push(int x)
{
    if (top >= (MAX - 1)) {
        cout << "Stack Overflow";
        return false;
    }
    else {
        a[++top] = x;
        cout << x << " pushed into stack\n";
        return true;
    }
}
 
int Stack::pop()
{
    if (top < 0) {
        cout << "Stack Underflow";
        return 0;
    }
    else {
        int x = a[top--];
        return x;
    }
}
int Stack::peek()
{
    if (top < 0) {
        cout << "Stack is Empty";
        return 0;
    }
    else {
        int x = a[top];
        return x;
    }
}
 
bool Stack::isEmpty()
{
    return (top < 0);
}
 
// Driver program to test above functions
int main()
{
    class Stack s;
    s.push(10);
    s.push(20);
    s.push(30);
    cout << s.pop() << " Popped from stack\n";
    //print all elements in stack :
    cout<<"Elements present in stack : ";
    while(!s.isEmpty())
    {
        // print top element in stack
        cout<<s.peek()<<" ";
        // remove top element in stack
        s.pop();
    }
 
    return 0;
}

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: www.geeksforgeeks.org

Tags: c++ stack stac

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

Comment

/* Java program to implement basic stack
operations */
class Stack {
    static final int MAX = 1000;
    int top;
    int a[] = new int[MAX]; // Maximum size of Stack
 
    boolean isEmpty()
    {
        return (top < 0);
    }
    Stack()
    {
        top = -1;
    }
 
    boolean push(int x)
    {
        if (top >= (MAX - 1)) {
            System.out.println("Stack Overflow");
            return false;
        }
        else {
            a[++top] = x;
            System.out.println(x + " pushed into stack");
            return true;
        }
    }
 
    int pop()
    {
        if (top < 0) {
            System.out.println("Stack Underflow");
            return 0;
        }
        else {
            int x = a[top--];
            return x;
        }
    }
 
    int peek()
    {
        if (top < 0) {
            System.out.println("Stack Underflow");
            return 0;
        }
        else {
            int x = a[top];
            return x;
        }
    }
    
    void print(){
    for(int i = top;i>-1;i--){
      System.out.print(" "+ a[i]);
    }
  }
}
 
// Driver code
class Main {
    public static void main(String args[])
    {
        Stack s = new Stack();
        s.push(10);
        s.push(20);
        s.push(30);
        System.out.println(s.pop() + " Popped from stack");
        System.out.println("Top element is :" + s.peek());
        System.out.print("Elements present in stack :");
        s.print();
    }
}

Popularity 9/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: java stack st

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

Comment

begin
 if stack is empty
    return
 endif
else
 store value of stack[top]
 decrement top
 return value
end else
end procedure

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: www.geeksforgeeks.org

Tags: stack stac

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

Comment

begin
 if top < 1
    return true
 else
    return false
end procedure

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: www.geeksforgeeks.org

Tags: stack stac

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

Comment

<script>
/* javascript program to implement basic stack
operations
*/
 var t = -1;
      var MAX = 1000;
    var a = Array(MAX).fill(0); // Maximum size of Stack
 
    function isEmpty() {
        return (t < 0);
    }
 
    function push(x) {
        if (t >= (MAX - 1)) {
            document.write("Stack Overflow");
            return false;
        } else {
        t+=1;
            a[t] = x;
             
            document.write(x + " pushed into stack<br/>");
            return true;
        }
    }
 
    function pop() {
        if (t < 0) {
            document.write("Stack Underflow");
            return 0;
        } else {
            var x = a[t];
            t-=1;
            return x;
        }
    }
 
    function peek() {
        if (t < 0) {
            document.write("Stack Underflow");
            return 0;
        } else {
            var x = a[t];
            return x;
        }
    }
 
    function print() {
        for (i = t; i > -1; i--) {
            document.write(" " + a[i]);
        }
    }
 
        push(10);
        push(20);
        push(30);
        document.write(pop() + " Popped from stack");
        document.write("<br/>Top element is :" + peek());
        document.write("<br/>Elements present in stack : ");
        print();
 
// This code is contributed by Rajput-Ji
</script>

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: www.geeksforgeeks.org

Tags: javascript j

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Contributed on May 10 2022

Juan D Khusuma

0 Answers Avg Quality 2/10

create stack data structure

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create stack data structure

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create stack data structure

stack data structure

create stack data structure

create stack data structure

create stack data structure

create stack data structure

create stack data structure

create stack data structure

create stack data structure

create stack data structure

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