Bad XOR 2 (Hard) So after successfully becoming many people's nightmare, XOR has struck again, this time to haunt you... |
Concatenation of Perfect Squares You are given a positive integer number. You have to determine whether this number can be represente... |
Scary Tree Recently Alex has been learning about the tree data structure. And, he has been struggling to write ... |
Kingdom - Great Roads of Destiny Shin wants to be the “Great General of the Heaven”. It is his dream. But becoming a “Great General o... |
Tasks Zico is a fan of Artificial Intelligence (AI). So he is doing a course on AI and even likes the teac... |
Circuit Breaker In your free time, you like to design various electrical circuits to give a hard time to your local ... |
XOR Tree You are given a tree with N vertices. A tree is a connected undirected graph without cycles. The tre... |
Shortest Path? Given an unweighted, undirected and connected graph consists of $N$ nodes numbered from $1$ to $N$. ... |
Sofdor Ali's Black and White Tree Sofdor Ali loves Computer Science. He prefers hexadecimal number system to decimals, just because it... |
Memes vs. Social Media In this era of modern technology social media is the most powerful weapon and the viral issue is the... |
Wizard Duel Wizard Duel is approaching soon in Hogwarts and the students of the Dueling Club are absolutely thri... |
Haunting of Herobrine Herobrine's horror stories are known by many, but only a few dares to speak that name out loud, for ... |
Explosion There is a house named Larcana. It is a very weird house. There are exactly N rooms in total and bet... |
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... |
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 ... |
Scarlet Speedster The scarlet speedster of Central City, popularly known as the Flash is fighting an epic battle again... |
Keep Moving Balurmath is a city which has N interesting tourist spots, which are connected between themselves by... |
Traveling Policy of Ajobdesh In Ajobdesh, there are multiple cities and one of them is considered as the capital city. Obviously,... |
Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |
Hasinur's Mission! Let me tell you something about Hasinur: He is a religious person. He prays 5 times a day. He loves... |
Simple And You are given a tree containing $N$ nodes. The nodes are numbered from $1$ to $N$. The root node of ... |
MEXimum Let’s get straight to the point. You are given a tree. In the tree, each node u has a number au ass... |
Cheap Tourist The country of Byteland is divided into N provinces numbered from 1 to N. The provinces are connecte... |
Life Saving Algorithm Recently flood has vastly affected some regions of the country. So many people are helpless and suff... |