OpenEmailGenerator/Queue_Reversal.cpp at main · Easy-To-Learn5/OpenEmailGenerator · GitHub

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  // CPP program to reverse a Queue
#include <bits/stdc++.h>
using namespace std;

// Utility function to print the queue
void Print(queue<int>& Queue)
{
	while (!Queue.empty()) {
		cout << Queue.front() << " ";
		Queue.pop();
	}
}

// Function to reverse the queue
void reverseQueue(queue<int>& Queue)
{
	stack<int> Stack;
	while (!Queue.empty()) {
		Stack.push(Queue.front());
		Queue.pop();
	}
	while (!Stack.empty()) {
		Queue.push(Stack.top());
		Stack.pop();
	}
}

// Driver code
int main()
{
	queue<int> Queue;
	Queue.push(10);
	Queue.push(20);
	Queue.push(30);
	Queue.push(40);
	Queue.push(50);
	Queue.push(60);
	Queue.push(70);
	Queue.push(80);
	Queue.push(90);
	Queue.push(100);

	reverseQueue(Queue);
	Print(Queue);
}