1 Create a data structure that efficiently supports the stack operations (pop and push) and also return the maximum element. 2  Assume the elements are integers or reals so that you can compare them. 3  Hint: use two stacks, one to store all of the elements and a second stack to store the maximums. 4  Tag systems.
Deep-Sea Mermaid Lake Mermaids Lake mermaids, sometimes known as Freshwater mermaids, live in freshwater and are built for chamouflage and sometimes live partially on land.
Rating Newest Oldest. Best Answer: Mermaids are vegetarians, so they mostly eat different kinds of seaweed and algae. They don't have big appetites either. If you really look forward to your meals, that could be a problem. Mermaids are a type of mammal - in the same category with dolphins and whales. They need to come up for air every so often.