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5 simple tips to become a red coder in https://codeforces.com/. What algorithmic books do you need? Which algorithm and topic ...

Guide on how to get started with Competitive Programming. Go to any platform like Codeforces, sort problems by difficulty and just ...

Solving CSES coding problems about algorithms and data structures https://cses.fi/problemset Chapter: Dynamic Programming ...

Lecture materials: http://codeforces.com/blog/entry/62690. First, I will talk about the Expected Value - with definition, examples and ...

Tutorial on Sparse Table data structure. We use it to solve Range Minimum Query by first storing minimum for every interval with a ...

Solving CSES coding problems about algorithms and data structures https://cses.fi/problemset Chapter: Introductory Problems.

Solving Codeforces problems about algorithms and data structures. Also on Twitch https://www.twitch.tv/errichto.

Tutorial for beginners on computations modulo P in competitive programming. In so many Codeforces problems, we need to print ...

Live-solving problems from https://codeforces.com/contest/1770 chat: https://twitch.tv/errichto Streaming schedule: ...

I talk about Competitive programming while playing chess with programmer/youtuber Gaurav Sen. Will I win at least once?

I will compete in the Educational DP Contest on AtCoder - https://atcoder.jp/contests/dp. I will approach problems from scratch, ...

I won Google Kick Start 2021 Round C. Watch my screencast with commentary and post-analysis.

First of several lectures about Dynamic Programming. It's a huge topic in algorithms, allowing us to speed exponential solutions to ...

Solving CSES coding problems about algorithms and data structures https://cses.fi/problemset Chapter: Introductory Problems.

Lecture on sqrt algorithms https://codeforces.com/blog/entry/96713 0:00 Hi 1:33 1) Sqrt decomposition 5:29 sqrt(log) time ...

Tutorial on bitsets in C++. You will often see on Codeforces that you should "just use bitsets", and now you will learn how to do it.

Binary exponentiation (or exponentiation by squaring) is an algorithm that quickly computes a big power a^b in O(log(b)).

Solving a medium coding interview question from Leetcode https://leetcode.com/problems/longest-palindromic-substring/ Final ...

This is the most comprehensive lecture on the binary search. Find the target value, or the first value satisfying some condition, ...