3. (15 points) (5 points) Consider the picture below to be a full heap holding 15 distinct integers (values not shown). Circle all nodes (if any) whose value could change if the key value of the shaded element is decreased (5 points) Consider the picture below to be a full heap holding 15 distinct integers (values not shown). Circle al vertices (if any) whose value could change as the result of an extractMin) operation