Life gives us many problems along the way. The problems might be analytical, logical or of other kinds. But we always try to solve those problems to move forward. As we successfully solve the problems some question arise as, “Is it the best solution?”, “Are there any other ways to solve the problem?” or like “Can the problem be solved with less time?” and to answer those questions algorithm comes in. Algorithm is a specific and logical procedure to be followed in order to achieve specific results, or to solve a math problem. By figuring an algorithm we can also figure out the time and size of a particular solution. The solution that takes less time or more like to say has the best complexity is considered as the best algorithm of that problem. Computational resources is really important for good algorithm. If we have to give an example we can say that, a computer scientist usually like to express algorithms as BIG OH NOTATION(one of the three asymptotic notation). Because when we know the worst case we can aim to develop or improve it and also avoid it.