What is the fastest way of calculating Time Complexity of any code?

Question

Specifically in Order of Growth(O).

Answer 1

Time complexity(TC) is just the time needed by your program to run till its completion.There is no such fast way to calculate TC of a code.The TC is not the same for every code you create because the algorithm's performance varies on different types of input data.For an algorithm,it is necessary that you mention only the maximum time taken by the algorithm for any input size i.e.,worst case TC.