Well i already solved 400 problems but was not able to reach at pupil. now should i solve from a20j ladder many coders say that it wouldnt be helpful nowdays. And also few high profile coder recommend to solve from a2oj. what should i do how should i solve? which startegy should i follow? Definetely target is not for pupil. I highly appreciate your time and consideration to me, wish you all will be happy with cp career, and i dont know should i quite it or not! sorry for using tourist's photo without taking the permission from him.