Have you heard of a situation where we have to assign a color to nodes of a graph (or its story equivalent) and no two neighbors should...

We have learned about Binary Search, now introducing ternary search. If you remember it, then you would know it works something like this...

I want to solve some problems with you but couldn't because we need range queries for that for which I will discuss the segment tree in...

We are back up solving the Codeforces contest after learning about graphs recently. Today we will be solving the First 3 problems of the...

We have learned some important algorithms of graphs. It is important to take break from learning new stuff and practice what you already...

Imagine, you open Google Maps and search for a location. And in return Maps tells you that it is 3 KM away. It is not very useful in most...

Do you also feel same as above when solving some problems. It will be marked as graphs or dfs-and-similar but there won't a graph given....

I know we studied DFS, BFS, and also the shortest path using BFS. You might be feeling that we are moving too fast, but graphs are...

Yesterday, we got started with graphs. I am very for this series because the graphs are beautiful. Once you get to understand them, you...

Welcome to Day 31, today we start learning graphs in computer science. But let's answer one question we must be asking Why do we even...

I love the problems in this contest a lot, they are challenging and fun. Do not forget to try problems by yourself first. Mainak and...

Continuing the up-solving contest we started yesterday, we will be solving problems C and D today. Digital Logarithm This is quite a fun...

I notice that rather than randomly picking up problems from the Codeforces, we can pick contests one by one and upsolve them. So we will...

Today we will learn to solve the Div3 Round 820's F as beginners. We will learn the technique and then go ahead and solve it. There are a...

You should try out these questions by yourself. Cupboards | C++ Implementation I_love_%username% | C++ Implementation Tram | C++...

There are multiple good things about this question. It is easy, so you can easily solve it. This is a simple question with a lot of...

We are at one week mark on consistency. Today we are solving the question 'Word': https://codeforces.com/contest/59/problem/A… Give it a...

The journey starts from the simplest questions only. So starting with the first question of the list - Young Physicist. You should...