LCM Divisible Subsequence You’ll be given an array of $N$ integers and two more integers $K$ and $M$. You have to find the num... |
Reverse Hash Binary strings are strings that can only have 0 or 1 as the characters. The hash value of a string i... |
Aliens 19 February 2020, Unidentified flying object (UFO) has captured student’s attention on top of the CS... |
Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |
The Game of Rocks Alice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co... |
Babur Biye Babu is getting married. Babu's fiancé is a prominent programmer of Bangladesh. She told Babu to sol... |
Gaaner Koli The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi... |
Orchid Division Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row... |
Efficient Construction on Mars Elon Musk has constructed N cities numbered from 0 to N−1 on Mars. He initially planned to construct... |
Interesting Pile Game Turja and Akash are playing an interesting game. Initially a pile of N stones is given to them. Each... |
Divisible LCM You have a sequence a1, a2, a3, …, an of n integers and q queries. In each query, you are given ... |
Move It! Few of my friends are working on a game called “Move It!”. It's a tile-based game played on an $n\ti... |
Train Hijack You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a... |
Random Graphs This problem is very easy. There's a graph of $N$ nodes. Each edge $u-v$ ($u >= v ; u = v$ is possib... |
Bikpik Colony Bikpiks are very small aliens. Day by day they are becoming very dangerous for human being. They liv... |
Birthday Present?! As everyone gifts graphs or strings to people on their birthdays, Oyshee’s friends decided to do som... |
Game of Destruction You are playing the deadly game Game of Destruction. You will be given a list of integers. In each s... |
Shrink the Array You have an array of size N which contains positive integers. You can apply the following operation ... |
Chocolate There is a shop named Chocolove in the Codeland. There are many chocolates in the shop. Each chocola... |
Inversions and Goodbye It's time to say goodbye to CSEmpur, at least for today. And so you wanted to give the citizens of C... |
Switchblade of Thanos We all know that Thanos “The Mad Titan“ had two adopted daughters, Gamora and Nebula. But did you kn... |
Poltu and Interesting Number Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere... |
Shopping is Fun!! Mr. Hikiko passed his Eid without shopping because of ongoing lockdown. Now, Govt. removed the lockd... |
T5 Racing It is high time for the annual T5 racing and your team is planning to win the race. In T5 racing the... |
Rainy Day You have to complete N tasks tomorrow, where each task can last for any number of minutes. Each task... |