nicotina04 → Personalized Codeforces Training Service — Introducing CFRD! ... I am not the best problem solver i make so many mistakes like most programmers out there and solve slower than most i want to improve my problem solving and think more analytically when it comes to Algorithms, Data Structures, Artificial Intelligence, Object oriented syntax, etc.

Problemset · Groups · Rating · Edu · API · Calendar · Help · → Pay attention · Before contest Codeforces Round 1090 (Div. 4) 31:52:51 Register now » · → Filter Problems · Main · acmsguru | Problems · Submit · Status · Standings · Custom test ·

I assume you already have some knowledge and know simple things like binary search and dfs/bfs, but read the footnote if you are complete beginner (never code, solved <50 problems, div2 A/B too difficult, grey or stuck low pupil). First, a quick tl;dr of the practice strategy before a bunch of specifics and explanation: In short, mostly you only need to use codeforces (no matter what contest you're training for), find a rating range where you can solve around ~30-40% of the time on your own, and just grind down the problem set tab in reverse order of id (the default sorting).

Usually, when people talk about this, they often say things like "try to view the problem as a graph problem" or "rephrase as a geometry problem (yuck!)" However, to become a Legendary Candidate Master like me, you need to multiply these pieces of advice together and divide by their greatest common divisor to realize that it's not enough to simply rephrase the problem -- you need to rephrase problem solving itself.

I had a lot of fun solving this! ... I use only a few thousand operations. I noticed that you can quickly reduce the problem from 1000 numbers to at most 20, by merging two numbers divided by the same power of two, you get two numbers which are divided by a strictly larger power of two (maybe one of the numbers ends up being zero).

It is my solution to the problems on the codeforces.com site. note this is not my coding style it is just for the fast writing in problem-solving contests - mohandsakr/my-problem-solving-solutions-...

HolkinPV → Codeforces Round #199 (Div. 2) Editorial ... Hello everyone! I have set up a training for beginners, The training focuses on solving various problems on Codeforces.

Initially I planned to put "non-strict" there, but later I abandoned this idea because the answer for single point was really weird then=) The difference in solution is quite small. The answer for "strict" problem is always more than for "non-strict" by exactly 4. Some coders preferred to add four neighboring points for each point like a cross to switch to solving non-strict problem.

Try coming through popular algorithms or methods that can apply to the problem in any way. It is useful to see the problem limits. Having picked a method, try thinking on the solution assuming that the problem is solved using this method. Your reasonings should be somewhat like this: "Let's assume that the problem is solved by divide and conquer.

We're glad to invite everyone to participate in Codeforces Round #1091 and CodeCraft '26 (Div. 2) — IIIT Programming Club's eighth round on CF! The contest will start on Tuesday, April 7, 2026 at 10:35UTC-4 and will be rated for all participants with a rating below 2100. There are 8 problems to solve in 2 hour and 15 minutes, with two of these being easy and hard versions.

🦖 Codeforces solutions, strategies, 🥭 and CP resources 🚁 Optimized solutions for Div. 1, 🫐 Div. 2, Div. 3, and educational contests ✈ Advanced problem-solving 🥣 techniques and algorithmic tricks 💡 Editorial-style explanations ✈ better understanding 🚀 Roadmap competitive programming ⛵ to level up my skills 🚖

October 23, 2019 - Flamire → Codeforces Round 1064 (Div. 1, Div. 2) Announcement ... I know practice makes perfect, and did read some helpful blogs about practicing with DP problems, or some advanced data structure/algorithms, such as segment tree, suffix array, Z-algorithm, etc.

This repository contains the solutions to CodeForces competitions.

Problem Solving By Python , java, dart , javascript , C/C++ , - gamalahmed3265/Codeforces-Problem-Solving

In the first sample Petya and Vasya ... how to solve the second problem. That means that they will write solutions for these problems. Only Petya is sure about the solution for the third problem, but that isn't enough, so the friends won't take it. In the second sample the friends will only implement the second problem, as Vasya and Tonya are sure about the solution. Codeforces (c) Copyright ...

RAD → Codeforces Beta Round #16 (Div. 2) Cicada3301 → Unexpected Errors and Unprocessed Submissions · Rahul977 → Unexpected Error: While submitting code ... How can I be good in problem solving.

The solution is to go to the problem set-> find that problem -> click on "Solved Column" and you get the page with options to filter the solutions :).

Contains solutions of Codeforces problems. Contribute to ShazidMashrafi/Codeforces development by creating an account on GitHub.

If you want more problems, then you can do it just by using Google. I have attached my template for each topic. You may not call it a template because some of them don't support the generalized use of the topic. But you can use them easily if you understand the topic and solve problems using ...

CF-Tools / cfviz / codeforces-solution-browser browser extensions and websites aggregate accepted codes and allow filtering by language, rating, and user. Repositories like "Competitive Programming" aggregators on GitHub contain sorted solutions per contest. ... On the problem page, click tags (e.g., graphs, dp). Search blog posts and tutorials for that tag to get general methods and sample solves for similar problems.