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... |
Happiness If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ... |
Ekupai Hacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer... |
Superman and the Buildings of Dahaka To end the long-running feud between Superman and Goku fans regarding who's stronger, Zeron has deci... |
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... |
Paying Bills Mued is finally home for summer vacation after surviving yet another semester of the mighty CS Under... |
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... |
Poltu and Interesting Number Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere... |
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... |
Milad's Lost Tree Milad likes trees so much. He has a rooted tree with $n$ vertices each of which has some non-negativ... |
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... |
Mina and Raju Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina... |
Distinct Permutations You are given two binary strings A and B. Recall that binary string is a non-empty sequence of chara... |
Make Strings Great Again! Do you know what is a sub-sequence? A sub-sequence is a sequence that can be derived from another se... |