Naughty Subsequence - V2.0
Mahib loves ‘Naughty Subsequence’-s. He will give you an array of characters ara[0,1,...,n-1] that c...
mashfiqur404 DP, DataStructure Very Easy 38/43/96
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...
Array Partition
Today Leena learnt about subarrays and partitions. Given an array $A$, a subarray of this array is a...
Messy Table
Akib is a very good student but his reading table is very messy. One Friday afternoon, Akib is sitti...
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 ...
Babur Biye
Babu is getting married. Babu's fiancé is a prominent programmer of Bangladesh. She told Babu to sol...
My Small Number
You are given two integers N and M. Find another integer X divisible by M that has the same number o...
Perseus and The New Challenge
The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
Poltu and Interesting Number
Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere...
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...
Easy Sequence 2
Let’s define a easy sequence F. Where $ F(1) = 1 $ $ F(2X) = F(X)^2 + 1 $ $ F(2X+1) = F(X) \times F(...
Dominoes Forever
Once when I was little, my father took me to a tobacco shop! It is surprising, but true. He asked th...
Bikpik Colony
Bikpiks are very small aliens. Day by day they are becoming very dangerous for human being. They liv...
Memes vs. Social Media
In this era of modern technology social media is the most powerful weapon and the viral issue is the...
Train Hijack
You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a...
I Hate Combinatorics!
Rick and Morty are being hunted by the galactic government. They ran away to the cell dimension. The...
Is This a Give-Away?
Once there lived an ancient mage named Farabi. He could always give perfect weather forecast. He nev...
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