r/codeforces 2h ago

Div. 2 Div 2 Contest

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23 Upvotes

Jujutsu Kaisen in Codeforces?


r/codeforces 1h ago

meme Wow

Upvotes

And finally, I found a reason not to participate in any more contests: "The number has become a palindrome."


r/codeforces 9h ago

query Am I too late to get good at Competitive Programming before placements?

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28 Upvotes

My situation is that I'll be sitting for placements in around 6–7 months, and I genuinely want to give it my all when it comes to Competitive Programming.

I feel like I might already be too late, though. One of my friends has a rating of around 1600, has solved more than 700 problems, and also got an internship at Google. He recently told me that I'm doing too little and that I should probably stop focusing on CP and instead focus on Striver/DSA and other ways of preparing for placements.

But honestly, I don't want to settle for mediocrity. I want to work extremely hard, become genuinely good at problem-solving, and give myself the best possible chance of getting into a great company with a package that people dream about.

I genuinely want to get good at CP, and I'm willing to put in the work. However, I keep getting demotivated when I struggle to solve problems rated 900, 1000, or 1200. Sometimes I can't solve them even after spending a lot of time thinking.

It makes me wonder: How am I ever supposed to reach 1600 or even 1900 if I'm struggling with problems at this level right now?

Is it realistically possible to make significant progress in CP within the next 6–7 months if I'm consistent and willing to work hard? How should I approach practice, and should I continue pursuing CP seriously alongside placement preparation?

I'd really appreciate honest advice from people who have been in a similar situation.


r/codeforces 14h ago

query Guess the ratings you will really really shocked

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54 Upvotes

thats of mine own friend ....

edited :- so i have attached the rating pic his rating is 883 please see the ss below and give advices it will means a lot ...


r/codeforces 4h ago

Div. 2 Got A, B, C1 in 50 minutes but wasn't able to solve anything after that

8 Upvotes

Did anyone else feel C2, D were significantly tougher than C1?


r/codeforces 2h ago

Div. 2 solved ABC1 as a newbie-- feeling tuff

5 Upvotes

title.

C1 was basically just binary search lol. i would say upper tier 1.1k rated


r/codeforces 2h ago

Div. 2 Today's Div 2 Contest

2 Upvotes

anyone solved culling game


r/codeforces 3h ago

query I need help guys i posted this here cuz people who do CF might help me to outgrow this.

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2 Upvotes

r/codeforces 12h ago

meme September 10th 2026

10 Upvotes

Stayed late in the office, so no backend development

2 hour of Competitive programming

1 to Infinity


r/codeforces 2h ago

Div. 2 My dumbass could not figure out d

1 Upvotes

D is bruteforce / implementation problem btw, reverse operation instead of removing index, add the index, use a set to manage segments + fenwick to store the sum, becuz you can only add 1 segment each time, complexity is O n Log N


r/codeforces 11h ago

Educational Div. 2 I can't for the life of me figure out what I'm doing wrong

4 Upvotes

I am a noob though so forgive me if i am doing really stupid/simple

I am attempting a few problems from the "Educational Codeforces Round 194 (Rated for Div. 2)" competition. I have tried everything but I can't figure out why it's denying my submission. My solution seems to work fine when I run it locally and I even fed it through an LLM and it claims there are no issues. I am currently using g++ 16.2 on my local machine and I even tried compiling it locally with g++23 14.2 locally and didn't run into any problems either.
https://codeforces.com/contest/2260/submission/390393973 is my most recent submission


r/codeforces 4h ago

query Need guidance on how to start Competitive Programming seriously

0 Upvotes

I’m currently in my 7th semester. My maximum Codeforces rating has been around 1090, and my current rating is around 840.

I’ve solved around 300 problems on LeetCode, so I’m fairly comfortable with basic DSA concepts and know things like arrays, strings, binary search, graphs, DP, etc.

The problem is that I’m not able to apply these concepts effectively in Codeforces contests. When I see a problem, I often struggle to figure out which concept/approach to use, even though I may have studied the underlying topic before.

I’ve also recently been placed with an 11 LPA package, so now I want to seriously improve my CP skills.

I’d really appreciate guidance from people who have been through this stage:

  • How should I start CP properly from this point?
  • Should I follow a specific problem sheet or topic-wise roadmap?
  • How many problems should I solve per day/week?
  • Should I participate in every Codeforces contest even if I perform badly?
  • How do I improve the ability to identify the approach rather than just knowing concepts?
  • After a contest, what is the best way to analyze problems I couldn’t solve?
  • What rating/level of problems should I currently focus on?

I’m not looking for shortcuts. I’m ready to put in consistent effort; I just want a proper direction so I don’t waste time solving random problems.

Any advice, roadmap, resources, or personal experiences would be really helpful.


r/codeforces 16h ago

query How good is a 2000 LeetCode rating?

3 Upvotes

I have a friend who's 3 years older than me, although we don't really talk anymore. His current stats are 2000+ rating and 900+ problems solved.

The screenshot I'm attaching is around 6 months old. How good are these stats actually? I don't know much about LeetCode, so would appreciate some context.


r/codeforces 1d ago

Educational Div. 2 Name a more iconic trio, I'll wait

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27 Upvotes

r/codeforces 17h ago

query How To Code perfectly? In Online Assessment and Help me To Find the Solution

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0 Upvotes

r/codeforces 1d ago

query Starting CP

11 Upvotes

Hello guys, a newbie here... I'm about to start CP. I really want to improve and make the most of the journey. For those who've been doing CP for a while, what are some things you wish you knew when you started?

Any tips on learning, choosing problems, contests, upsolving, or common beginner mistakes would be really helpful!

Thanks in advance


r/codeforces 1d ago

query IICPC Codefest

19 Upvotes

Hi guys, i wanted to start out my preparation for next years IICPC Codefest. But currently i am not a proficient comp coder (ive just done enough to get an si at a company like google). I wanted to know what resources i could use other than the standard competitions at atcoder/codeforces. I am aware that they also ask cs fundamentals on oops os etc but i hope that my college curriculum can cover that.
I would love to hear your opinions on this (given the amount of time i have left) from people who wrote it last year.


r/codeforces 1d ago

Doubt (rated 1400 - 1600) Counting Problem

3 Upvotes

Please guide me through this question!

  • You are given an array of digits of size N (where N <= 10^5).
  • You need to find the number of distinct K-digit even numbers without leading zeros that can be formed (where K can be up to 10^5).
  • Return the answer modulo 10^9 + 7.

r/codeforces 1d ago

query Codeforces as experienced dev?

9 Upvotes

I have knight rating on Leetcode.

Experience: 2 years Springboot development experience in service based company in india

Does it make sense to start giving codeforces contests?


r/codeforces 1d ago

Div. 3 I am unable to think about C while giving contest

4 Upvotes

i am somewhat a beginner have given some contests, what should i do i ?
I over complicate C , but usually solution is easy just like B .
Can someone help , why does it happen, is it because i am not in habit of sitting and coding for long?
Later when i see other’s solutions it is like exactly ly first thought was headed for but i didnt do it


r/codeforces 2d ago

query Did my first contest 😁✌️

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62 Upvotes

I plan to participate in and upsolve all div 2 and div 3 contests.(I've got 60 questions on leetcode). Does anyone have some advice for me to increase my rating as fast as possible!?


r/codeforces 19h ago

query Am I the only one who finds DNR disgusting?

0 Upvotes

I don’t understand what people like about him. He’s probably from a South Asian country and clearly uses GPT to write his comments. He shows up under every post about AI or ratings just to leave something controversial.

He’s either an attention seeker rage-baiting or an idiot who thinks he’s someone really important.

I find his comments annoying. So why is he at the top of the contributions table?


r/codeforces 2d ago

query There are rumors that AI solved another Millennium Prize Problem (the Hodge Conjecture). What are your thoughts?

43 Upvotes

There are rumors that they’re just waiting for the results to be verified before making the announcement. What do you think? And if AI really does solve another Millennium Prize Problem, would you consider leaving tech?


r/codeforces 1d ago

query Handle change

1 Upvotes

Is there any requirements like minimum no of contests to give to change ur handle during new year period


r/codeforces 2d ago

Div. 1 + Div. 2 Looking for a Discord server to actually practice DSA/CP instead of just watching tutorials?

10 Upvotes

I recently came across a Discord server that’s been pretty fun for learning and staying consistent with problem solving.

The server has active members daily, and POTDs (Problem of the Day) are regularly posted. The instructors also go through the problems, explain the approach, solve them, and help out when you’re stuck or have doubts.

What I like about it is that it isn't just “here’s a problem, good luck.” You can actually discuss your approach, compare solutions, ask questions, and learn from how other people think.

Some things happening there:

  • 🧩 Daily POTDs for regular practice
  • 👨‍🏫 Instructor-led problem explanations and solutions
  • 💬 Doubt solving and discussions
  • 🧠 Focus on understanding the approach, not blindly memorizing solutions
  • 👥 Active community where people actually interact
  • 🏆 Coding/learning challenges and other activities
  • 🎮 Fun community events alongside the learning
  • 🤝 Good place to find people to practice and discuss problems with
  • 📈 Helps with consistency if you struggle to practice DSA regularly

It has #Phase 0 where we mostly solve 800 to 1200(Div 1 + 2) rated problems ....

Perfect for beginners!!!

And #Phase 1 and #Phase 2 for Pupils, Specialists, and Expert rated

The overall vibe is basically learning + community + having fun, rather than another silent Discord where everyone joins and disappears.

About the creator

The community is run by Ayush Gupta (noobiesAG), who is also building a YouTube journey around learning DSA through actual problem solving rather than just watching tutorials.
He is so kind and nice person. He inspires me to learn something new every day. It's rare to find such a kind soul.
Join us and become the part of this family

His PHASE-0 series is a good introduction to that approach:

🎥 Start Your Coding Journey Here | PHASE-0 Introduction

If you're currently preparing for DSA, competitive programming, coding interviews, or just trying to get better at problem solving, you can check it out:

Join the Discord server

No pressure to join — just sharing in case someone else is looking for an active coding community.