Programming in pairs

General Steps:

• Do this in collaboration with your partner
• Do not start programming until you know how you plan to solve the problem
• Think about how you would do it. Try and come up with an idea
• Talk it over with your partner
• If you have an idea how to do this program, make sure that you can communicate your idea well enough for someone else to understand.
• Check this by having your partner state your idea back to you - did they understand it correctly?
• Now write the program. (Each person writes the program, but it will probably be the same program since it's the same idea or algorithm.)
• If you have two ideas on how to do this, then you could each try one.

Program: biggest 3 numbers

Assumptions:

• you know how to make an array
• you know how to make random numbers

Task:

• Make an array of 20 random ints.
• Find the biggest 3 ints
  § Does it make a difference in how you do your program whether the ints are from 0-100 or all possible values of int?
  § How much would need to be changed if you had 1000 random ints?
  § and if you had to find the top 15 numbers?

Extra task:

• Now change it to an array of positive doubles and see if it still works.
• Make sure that your doubles include large numbers, e.g. more than 10^7
  (How do you get a random number that covers the whole range of doubles? There are at least two ways to do this)