A Boring Game
Alice and Bob are playing a game with a tree with n nodes. Alice always plays first, and the two pla...
MangoSmash
Your friend has come to visit the RUET campus. As the Mango season goes on ⋯, he/she said “Mama Aam ...
MEXimum
Let’s get straight to the point. You are given a tree. In the tree, each node u has a number au​ ass...
Wizard Duel
Wizard Duel is approaching soon in Hogwarts and the students of the Dueling Club are absolutely thri...
Shortest Path?
Given an unweighted, undirected and connected graph consists of $N$ nodes numbered from $1$ to $N$. ...
Gold Mines
The city of gridland is a grid with n rows and m columns. The city can be divided into n*m cells. A ...
DFS, Graph Moderate 53/68/260
Ghosh vs Datta
About two hundred years ago, a serious dispute evoked between the two neighboring colonies of Khulna...
Zer VS EEE
Zer is a programmer who has a friend named Nir. Nir always shows off how great EEE is. One day Nir c...
Flow on Tree
Mr. Kaboom has recently learned about maximum flow. Now his friend Mr. Taboom gave him this problem....
The Spy Cats
After Max and Alexis's initial plan to conquer the world with kitten armies failed, they started a n...
Spanning Tree
There are N nodes in a tree. You can start from any node of that tree and you have to come back to t...
Graph Moderate 80/86/125
Set the Meeting
Three colleagues Motu, Biscuit and Ramjan are in Sundarbans now. They are on a mission to protect th...
Prime Avoider
Mr. X is a friend of Hafiz bhai. Mr. X loves to play with numbers in his leisure but he hates prime ...
Hasan the Treasure Hunter
Benjamin Gates the treasure hunter opened a coaching center named Khajna Dibo Na where he teaches hi...
Reverse The Magic
You are probably familiar with the technique of representing a Tree as an array of integers using Eu...
Scarlet Speedster
The scarlet speedster of Central City, popularly known as the Flash is fighting an epic battle again...
Meena Meets The Marauders
December 14, 1975 Hogwarts School of Witchcraft and Wizardry It’s been a long long day. The Marauder...
Tasks
Zico is a fan of Artificial Intelligence (AI). So he is doing a course on AI and even likes the teac...
Best Place to Arrange Contest
We are going to arrange the 7th CPU CSE programming contest in our department. But to arrange a cont...
Darth Vader and 3PO on a Tree!
Did you watch Star Wars yet? No? You should in your free time. Now back to Darth Vader and 3PO. Dart...
Explosion
There is a house named Larcana. It is a very weird house. There are exactly N rooms in total and bet...
MonoMono
You have probably heard of the famous board game, Monopoly. According to Wikipedia, in this game, pl...
Birthday Present?!
As everyone gifts graphs or strings to people on their birthdays, Oyshee’s friends decided to do som...
Big Bang Theory
Dr. Sheldon Cooper is working on a project that works on the 2D concept of the universe. In this pro...
Nilkhet
You’re planning to start a library for the next n days, where you will rent books to students. Each ...
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