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Can I have a sample code for this task?
No you have to create it if you don't find it on internet. the alternative is to hire someone to do it for you.
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.