A Boring Game Alice and Bob are playing a game with a tree with n nodes. Alice always plays first, and the two pla... |
Bad XOR 2 (Hard) So after successfully becoming many people's nightmare, XOR has struck again, this time to haunt you... |
Best Place to Arrange Contest We are going to arrange the 7th CPU CSE programming contest in our department. But to arrange a cont... |
Big Bang Theory Dr. Sheldon Cooper is working on a project that works on the 2D concept of the universe. In this pro... |
Birthday Present?! As everyone gifts graphs or strings to people on their birthdays, Oyshee’s friends decided to do som... |
Change Queries Today is a very special day for Rubel. Recently he got a job in a software company. Now today is the... |
Cheap Tourist The country of Byteland is divided into N provinces numbered from 1 to N. The provinces are connecte... |
Circuit Breaker In your free time, you like to design various electrical circuits to give a hard time to your local ... |
Concatenation of Perfect Squares You are given a positive integer number. You have to determine whether this number can be represente... |
COVID-19 Outbreak COVID-19 outbreak in Atlantis is so bad that the government is forced to lock down the whole country... |
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... |
Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |
Explosion There is a house named Larcana. It is a very weird house. There are exactly N rooms in total and bet... |
Flow Finder Last summer, Carla the Cartographer went on an expedition on behalf of the National Center for Posit... |
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 ... |
Hasan the Treasure Hunter Benjamin Gates the treasure hunter opened a coaching center named Khajna Dibo Na where he teaches hi... |
Hasinur's Mission! Let me tell you something about Hasinur: He is a religious person. He prays 5 times a day. He loves... |
Haunting of Herobrine Herobrine's horror stories are known by many, but only a few dares to speak that name out loud, for ... |
Help to Be Happy A country named Mueawin has one or more villages and one or more people live in every village. Two p... |
Hide and Seek You know how to play hide-and-seek, right? In a group of kids, one of them is selected to be the see... |
Identify the Level Amin and Belal are two friends. Both have good knowledge about graph and tree in data structure part... |
Keep Moving Balurmath is a city which has N interesting tourist spots, which are connected between themselves by... |
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... |
Kingdom of Code Kingdom CODE is the most peaceful place in the universe. King NOVOSH and Queen ALMIDA is ruling this... |
Lets Play Pipeline In this problem you will have to solve a puzzle game named "Pipeline". 90's kids knows this game ver... |