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.
a mermaid is a half human fish.the top half of a mermaids body is a  humans,then when it reaches the waist there is a long fishes tail  that mermaids use to swim   a halâ¦f human half fish. 3 people found this useful.