Quote:can someone show me implementation of this algorithm in c ? or explain it some more please.
You are learning !
Do try to find the most efficient algorithm on internet.
As a learner, your task is to device an algorithm that do the job. It is by searching the algorithm yourself that you will learn something.
It is better to find a slow algorithm that you understand, rather than a dast algorithm that you don't understand.
You need to find every subset and calc the mean. Take a sheet of paper and a pencil and solve the problem by hand. Het a small set of values and write every possible subset, and think at how you can enumerate them by program.
We do not do your HomeWork.
HomeWork is not set to test your skills at begging other people to do your work, it is set to make you think and to help your teacher to check your understanding of the courses you have taken and also the problems you have at applying them.
Any failure of you will help your teacher spot your weaknesses and set remedial actions.
Any failure of you will help you to learn what works and what don't, it is called 'trial and error' learning.
So, give it a try, reread your lessons and start working. If you are stuck on a specific problem, show your code and explain this exact problem, we might help.
As programmer, your job is to create algorithms
that solve specific problems and you can't rely on someone else to eternally do it for you, so there is a time where you will have to learn how to. And the sooner, the better.
When you just ask for the solution, it is like trying to learn to drive a car by having someone else training.
Creating an algorithm is basically finding the maths and make necessary adaptation to fit your actual problem.