Happiness
If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ...
Superman and the Buildings of Dahaka
To end the long-running feud between Superman and Goku fans regarding who's stronger, Zeron has deci...
Perseus and The New Challenge
The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
My Small Number
You are given two integers N and M. Find another integer X divisible by M that has the same number o...
Is Bita Happy?
Bita has learned bitwise-operations recently. She is doing some experiments with these operations no...
Happy Sub-Sequence
Recently Alex has participated in a programming contest. He became 1st runner up. He couldn't solve ...
Sofia
Sofia has just arrived in Bangladesh. Rather asking it some dumb questions, lets give it a maze prob...
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
Master Plan
Gakra Miah is a Wollywood movie lover. He watches movies almost everyday. He has watched so many mov...
Poltu and Interesting Number
Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere...
Harry Potter and the Vault of Gringotts
"There was a break-in of Gringotts Wizarding Bank on 1 May, 1998, during the height of the Second Wi...
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...
Game of Palindromes
In a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ...
Shrink the Array
You have an array of size N which contains positive integers. You can apply the following operation ...
Gaaner Koli
The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi...
Police Stations
Recently the government of country S is going to construct some police stations(possibly zero) in so...
Rainy Day
You have to complete N tasks tomorrow, where each task can last for any number of minutes. Each task...
Aliens
19 February 2020, Unidentified flying object (UFO) has captured student’s attention on top of the CS...
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...
Pathetic Interview II
You all know about the story of Pathetic Interview-I. Today, I am sharing a story of my close friend...
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