How do i reach pupil? What range of questions and topics i have to practice?And how many questions in div2 contests i have to solve to reach pupil?
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How do i reach pupil? What range of questions and topics i have to practice?And how many questions in div2 contests i have to solve to reach pupil?
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Maybe div2 AB (difficulty 1100~1300) is enough. You can join in virtual contests and try to solve them.
how do u skipped most of 2200< practice and did more for 2200+ rated problems?
my main oj is not codeforces.
so which ur main oj
luogu, a Chinese oj.
suggest a sheet a set to do ?
sorry my english is poor so I don't understand what you want to express.
Everyone's journey is different. A lot of people practice on different platforms before joining Codeforces. Some have a decent programming/math background so they don't need to solve a lot of easy problems.
Start Solving 1400.
"Shoot for the Moon, even if you miss, u will land among the stars." — was my motto and I reached pupil just by solving 1300-1400. While doing 1300-1400, u will automatically become good at solving 1000-1200.
Thanks for ur opinion
Your hit-map is very Well but You have to solve more standard problems like 1000 to 1300 rated problems.This makes you more confident.
how do i learn number theory? any blog or source you would suggest? also what is pref sum?
I am a newbie.I can't understand the rating system of contest.At first my rating was increasing gradually just by solve 1 problem (A).But from after after 3 contest to now my rating decreasing drastically.would you please explain me the rating system of codeforces
stop solving 800's.. start solving 1200,1300,1400 learn bit manipulation, dp, binary search, some number theory related to modular arithmetic, also start exploring standard greedy algorithms.
any source to learn bit manipulation, dp and number theory?
You may read this blog for Bit manupulation 1, 2
Then go to codeforces ProblemSet and search by tag and Solve problems to +200 or more your current rating or comfort zone.
are there blogs like this for other topics as well? if so, how do I find them?
As well as Dp, it is not topic. It is optimize technic.You can Learn through Practice.But you have to learn Binary Search, Two pointer, Sliding Window, Prefix-sum also.
For Number theory I read GFG Mathematical-Algorithm
Then Solve problem from Codeforces.
for bit manipulation you can watch this lecture it is enough for pupil https://www.youtube.com/watch?v=LGrE0siZ-ZA&pp=ygUcYml0IG1hbmlwdWxhdGlvbiBieSBwcml5YW5zaA%3D%3D
for dp refer to this playlist https://www.youtube.com/playlist?list=PLcXpkI9A-RZI-xF76L0sZq_u-k_yHz8pd
you need to do AB div2 fast, 5 div4 problems and 4 div3 problems. The E div4s and D div3s were usually 1400.
what all topics do i need to know to solve A and B div 2 under 1 hour?
Just simple algorithms like greedy, binary search, sortings
4 things
Don't stress about ratings... It's like that saying "You have the right to work but not to the fruits of the work, if it chooses you good, if not keep trying"
A B C in div 2 will make u pupil easily (just don't cheat)
Keep in mind that one of the mistake that most beginner has is that they find it interesting to do bunch of easy problems but try to avoid strange topics or harder problems. Obviously if you want something, you have pay for it. So try harder and do more complex problems. My recommendation is not just for reaching pupil but higher ranking as well.
harder problems = sad down hours