Find the Number of Pearls
Today is a very special day. It’s the birthday of only one girlfriend of programmer Shojib. Now, you...
Recursive World!
See following the two recursive functions: C(0) = 0 C(1) = 5 C(K) = C(K-1) + 4 F(0) = 1 F(1) = 2 F(N...
MEXFN
This is a straightforward problem without much story behind the problem. You have to calculate MEXF...
Maximum Distance
You know it’s hard seeing your favorite person being interested in another one instead of you. At th...
Calendar of Planet Biku
Mr. Hikiko is the emperor of a planet called Biku. He got a gift from planet earth which can count t...
Lazy Supermen
There are two hills in Sonargaon. The heights of them are H1 and H2 meter. The distance between the ...
The Lucky Dice
Ray and Evangeline are playing a game named "The Lucky Dice". In this game, each player tosses up an...
Killing Floor
$N (1 \leq N \leq 10^{18})$ robots have decided to take part on a battle royale. Every robot has a u...
Arko and Special Permutations
Arko is very fond of permutations. He can easily calculate the number of n length permutations. (In ...
Arunima City
After the big decentralization process, where Dhaka city's population were relocated, a new city cal...
Nodes and Depth
From the above figure, the number of nodes for the first three depths are 3, 9, and 27. You will b...
Cocoa Coalition
Alice and Bob decide to share a chocolate bar, which is an $n$ by $m$ rectangular grid of chocolate ...
Math Moderate 32/43/240
Recursive Function
A common example of recursion goes something like this: long long recur(int x){ if (x==0){ return X0...
Blanket
You have a suitcase with length X, width Y and height Z. You also have a very comfortable blanket. I...
Khataraina is Back!
Last year we helped Adnan with his girlfriend Khataraina’s issue. This year she caused another troub...
Building Boundaries
Maarja wants to buy a rectangular piece of land and then construct three buildings on that land. The...
Circle of Death
Abir is a school going boy, who loves math. Also, he loves to play with stones. Recently he invented...
The Mughal Emperor
You all must’ve heard the name of the emperor Humayun Mirza. He was a very kind human being. But thi...
Poltu and Trailing Zero
Poltu gives a problem to his friend Boltu. The description is given below: You are given an integer ...
Palindromic CSEmpur
Welcome to CSEmpur once again! It has been observed that a good number of inhabitants like palindrom...
Ant Query
Scientists from the planet Krypton have figured out a way to grow artificial sugar in space. They ha...
Demonic Subset
Lets not waste your time with long tiring problem statement and just go straight to the point. You a...
Help Lazy Tareq
There is a boy named Tareq Abrar who is very lazy. He likes sleeping. He also likes eating. His moth...
Scary Big Chessboard
Our friend Alice got stuck in a big chessboard. The chessboard has N rows and N columns. Some cells ...
Wizard Duel
Wizard Duel is approaching soon in Hogwarts and the students of the Dueling Club are absolutely thri...
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