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Has anyone ever done this?
Every single div1 people that I know IRL or online had coach.
so I think it's extremely hard to improve and get into div1 without proper guidance from coaching.
but I have no affiliation, coaching will not available but still I want to improve, so asking help from people who actually become div1 without coaching.
I know many people who didn't. Even myself, after ~1900 I didn't have a coach, only friends and acquaintances whom i could ask something.
I don't say that one doesn't need a coach to become div1, but having a coach absolutely is not a necessary condition to reach some certain level (at least up to read)
Neither I deny that with a good coach you will in fact most likely reach it sooner. However, if one is stuck at some point, I believe just something is wrong about his approach/attitude for trainings, and that's the first thing that has to be changed before getting a coach
It is certainly possible, I am not a CM but until very recently I had no coach and no friends that did CP. Everything I did, I did it 100% by myself.
why u made a new account?
I did get everywhere I am without having had any formal coaching besides having been introduced to C++ and the very basic algorithms, however I would have done it much faster if I had a coach or someone to mentor me throughout the process.
However, online communities such as Errichto's server are very useful and I've seen a lot of people improve over time as they learn from more experienced peers. Even back in the day when I used to be a more active competitor, being an active member in various discord servers was very helpful especially as far as making the step to more superior echelons of competitive programming, so yes, getting to purple is possible by yourself, however having someone to guide you can be very useful.
but purple isn't that great
I can solve < 2200 pretty easily and I don't have a coach.
Master here. Trained all by myself since March this year with no coach but a few friends to discuss with.
Same here since January. I followed CSES (stopping at advanced techniques), their book easily contains everything you need to know for CM
what after CM?
Shepherd me o God
beyond my wants
beyond my fears
from death into life.
God is my shepherd so nothing shall I want.
I rest in the meadows of faithfulness and love.
I walk by the quiet waters of peace.
Shepherd me o God
beyond my wants
beyond my fears
from death into life.
Gently You raise me and heal my weary soul.
You lead me by pathways of righteousness and Truth.
My spirit shall sing the music of Your name.
Shepherd me o God
beyond my wants
beyond my fears
from death into life.
Though I should wander the valley of death
I fear now evil, for You are at my side
Your rod and Your staff my comfort and my hope.
Shepherd me o God
beyond my wants
beyond my fears
from death into life.
You have set me a banquet of love
in the face of hatred.
Crowning me with love beyond my power to hold.
Shepherd me o God
beyond my wants
beyond my fears
from death into life.
Surely Your kindness and mercy follow me
All the days of my life
I will dwell in the house of my God
forevermore.
Shepherd me o God
beyond my wants
beyond my fears
from death into life.