The main stack operations are: push (int data):Insertion at top int pop():Deletion from top Implementing Queue using stack A queue can be implanted using stack also. We need two stacks for implementation. The basic idea behind the implementation is to implement the queue operations (enqueue,...
publicvoidpush(intx) { while(!stack.isEmpty()){ aux.push(stack.pop()); } stack.push(x); while(!aux.isEmpty()){ stack.push(aux.pop()); } } // Removes the element from in front of queue. publicvoidpop() { stack.pop(); } // Get the front element. publicintpeek() { retu...
Implementation of a stack using two queuesLikewise, a queue can be implemented with two stacks, a stack can also be implemented using two queues. The basic idea is to perform stack ADT operations using the two queues.So, we need to implement push(),pop() using DeQueue(), EnQueue() ...
Now, let’s see how to write a program for the implementation of queue using array. Code Implementation Java // java program for the implementation of queue using array public class StaticQueueinjava { public static void main(String[] args) { // Create a queue of capacity 4 Queue q ...
Stack: Implements a stack akin to std::stack in C++. String: Implements a basic string class that mimics std::string in C++. Vector: Implements a dynamic array similar to std::vector in C++. PriorityQueue: Implements a priority queue based on std::priority_queue in C++. Deque: Implements...
usingnamespacestd; structQueue{ intfront, rear, capacity; int* queue; Queue(intc) { front = rear = 0; capacity = c; queue =newint; } ~Queue(){delete[]queue;} voidqueueEnqueue(intdata) { if(capacity == rear){ printf("\nQueue is full\n"); ...
The complexity of enqueue and dequeue operations in a queue using an array isO(1). If you usepop(N)in python code, then the complexity might beO(n)depending on the position of the item to be popped. Applications of Queue CPU scheduling, Disk Scheduling ...
Working of Stack Data Structure Stack Implementations in Python, Java, C, and C++ The most common stack implementation is using arrays, but it can also be implemented using lists. Python Java C C++ # Stack implementation in python# Creating a stackdefcreate_stack():stack = []returnstack# Cr...
<queue> #include <ranges> #include <stack> #include <stdexcept> #include <string> #include <tuple> #include <type_traits> #include <utility> #include <variant> #include <vector> // is_reservable concept template<class T> concept is_reservable = requires(T input) { input.reserve(1); }...
In C++, the string can be represented as an array of characters or using string class that is supported by C++. Each string or array element is terminated by a null character. Representing strings using a character array is directly taken from the ‘C’ language as there is no string type...