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.
16,577 Contributions. a mermaid is called a mermaid because they are human and fish at first they were called human fish 'Mer' is french for 'sea'. 'Maid' is old English for young woman of marriagâ¦eable age. The term probably came from the period after the Norman invasion of England when the two languages were merging into Middle English.