Updated StackOfLinkedList.java - #711
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I made the code shorter and less prone to mistakes by removing the "size" variable altogether from the LinkedList class. I found that after each push/pop operation, changing the value of size did make the code more efficient, but made it more prone to mistakes. So, for empty stack, a simple "head == null" was enough, which has been incorporated.
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I made the code shorter and less prone to mistakes by removing the "size" variable altogether from the LinkedList class. I found that after each push/pop operation, changing the value of size did make the code more efficient, but made it more prone to mistakes. So, for empty stack, a simple "head == null" was enough, which has been incorporated.