Same way for exams, too, especially when essay writing is included. Good ideas comes in a flash, you don't know how, you don't know when. Most of the time, if

Same way for exams, too, especially when essay writing is included. Good ideas comes in a flash, you don't know how, you don't know when. Most of the time, if you can come up with a great solution and can express it in a clear and structured way the moment you hear the problem, that just means you're familiar with the topic or it is something you've solved before.