Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |
Maximum Sum Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,... |
Alternative Subsequence: The Extension Recall that the sequence b is a subsequence of the sequence a, if b can be derived from a by removin... |
Super Mario Bros Every kid loves to play Super Mario Bros. Mario moveু forward and collects coins in a stage. Stages ... |
Make It Big! You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c... |
Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |
Shopping is Fun!! Mr. Hikiko passed his Eid without shopping because of ongoing lockdown. Now, Govt. removed the lockd... |
Penguins of Madagaskar You all heard about the Penguins of Madagaskar. They work for the penguin kind and loves cuteness. O... |
Video Game Pro Shefin is playing a video game. In this game, there will be $N$ buildings in a row. $i^{th}$ buildin... |
Orchid Division Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row... |
Messy Table Akib is a very good student but his reading table is very messy. One Friday afternoon, Akib is sitti... |
Find NSUPS Given a string s, find the number of subsequence in s which forms the word "NSUPS". A subsequence is... |
m-Beautiful Numbers An m-Beautiful Number is a number which is divisible by $m$ and the sum of the digits is also divisi... |
Defeat in Final Battle Sifatul Islam is a great fan of Iron man. He is planning to make a suit for iron man. The suit can s... |
Third Dimension Mr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across... |
Buckets of Water In Abby's area the water is available in the tap only from 6AM to 8AM. So, Abby thought she would st... |
Ekupai Hacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer... |
Fivefold Removals Alice and Bob are playing a simple game on marbles. They have a bucket containing N marbles, and the... |
Happiness If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ... |
My Small Number You are given two integers N and M. Find another integer X divisible by M that has the same number o... |
Polygon Construction (Hard) Meera in going to picnic with her friends. They are going to have lots of fun. They will be doing va... |
No GCD You are given N integers. Each integer is square free (i.e. it has no divisor which is a square numb... |
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... |
Chocolate There is a shop named Chocolove in the Codeland. There are many chocolates in the shop. Each chocola... |
Is It Perfect Bob has an initial array D of length n . Alice is a good friend of Bob. So Bob challenges Alice to f... |