@@ -0,0 +1,527 @@
+%0A// https://www.hackerrank.com/contests/30-days-of-code/challenges/day-18-queues-stacks/submissions/code/4743119%0A%0Aclass Palindrome %7B%0A    %0A    Queue%3CCharacter%3E queue = new LinkedList%3CCharacter%3E();%0A    Stack%3CCharacter%3E stack = new Stack%3CCharacter%3E();%0A    %0A    void pushCharacter(char ch) %7B%0A        stack.add(ch);%0A    %7D%0A    %0A    void enqueueCharacter(char ch) %7B%0A        queue.add(ch);%0A    %7D%0A    %0A    char popCharacter() %7B%0A        return stack.pop();%0A    %7D%0A    %0A    char dequeueCharacter() %7B%0A        return queue.remove();%0A    %7D%0A%7D%0A

Create Day18-QueuesAndStacks.java