Is there a way to calculate a program's time complexity in milliseconds?

Question

Well, I wanted to compare the time efficiency of 2 programs, which are designed to do the same thing. I want some function/script/method, so that after the execution of a program, it gives me the time required to do that process. like - "The program took 0.3ms to complete". I had searched for threads with similar topic,but i was not satisfied with what i read. So any light on this topic is appreciated!

Answer 1

If you want to measure execution time you can:

1. Use boost timer

2. Retrieve system time before and after execution and compare