Do not use static variables to implement recursive methods.  USING JAVA 1.  Using Big Oh notation, indicate the time requirement for each of the following tasks in the worst case. Describe which operations are assumed to take constant time to. After arriving at a party, you shake hands with each person there. n is the number of persons in the party. Each person in a room shakes hands with everyone else in the room. n is the number of persons in the room. You climb a flight of stairs. n is the number of stairs After entering an elevator, you press a button to choose a floor. n is the number of floors You ride the elevator from the ground floor up to the nth floor. You read a book twice. n is the number of pages in the book Using Big Oh notation, indicate the time requirement of each of the following tasks in the worst case. Display all the integers in an array of integers. Display all the integers in a chain of linked nodes. Display the nth integer in an array of integers. Compute the sum of the first n even integers in an array of integers.

Do not use static variables to implement recursive methods. 

USING JAVA

1. 

1. Using Big Oh notation, indicate the time requirement for each of the following tasks in the worst case. Describe which operations are assumed to take constant time to.
2. After arriving at a party, you shake hands with each person there. n is the number of persons in the party.
3. Each person in a room shakes hands with everyone else in the room. n is the number of persons in the room.
4. You climb a flight of stairs. n is the number of stairs
5. After entering an elevator, you press a button to choose a floor. n is the number of floors
6. You ride the elevator from the ground floor up to the nth floor.
7. You read a book twice. n is the number of pages in the book

Using Big Oh notation, indicate the time requirement of each of the following tasks in the worst case.

1. Display all the integers in an array of integers.
2. Display all the integers in a chain of linked nodes.
3. Display the nth integer in an array of integers.
4. Compute the sum of the first n even integers in an array of integers.