/sci/ - Science & Math

>>11236694
Hey hi OP here.
It's not that I don't understand the concepts, I can read the book and watch the lectures and understand what they are talking about. It's just that the exercises, for example
>>11234588
is quite impossible for me to come up with a solution? I don't understand how people can do that, or come up with a log(n) generation of fibonacci from applying transformations, or other weird stuff like that.
It's like the exercises are on a whole different level, and they force you to think for like 1h to get the solution. Sometimes the exercises are so hard I dont even understand the solutions to some of those. It takes so much effort to develop an idea/approach of solving the problem, then translating that into perfectly executable code with no errors, and then I have to debug the code for logical errors and so on.
The exercises are pretty tough, and I skip those that I could never be able to do even aft 2hs of thinking with no progress, (the miller-rabin one). Otherwise, i complete about 80% of exercises and i make an honest attempt at every single one of them.
It's not that the concepts are hard, its the exercises.
Since i read ahead by abit (im still at chapter 1.3), here are some things I dont understand. What is message passing, dynamic dispatch, tagging(section 2.5)? I dont understand the environment model they are talking about in chapter 3 as well. Thanks for the help bro

The front fell off edition

Old thread: >>11160310