Prime Team
There are n players standing in a line. Each of the players is assigned a unique jersey number. You ...
Paltu, a Prime Lover
Note that the memory limit is unusual. Paltu is a good programmer and he loves prime numbers. One da...
Zacob the Batsman
It's known that Zacob is a reliable batsman of LU CSE Cricket Team. Also as long as he is on the cre...
NAC-SAC Game! (Easy)
Akash and Guru are playing an interesting game. They are standing at the two ends of the NAC-SAC bri...
Life of Phi
The Great Khami is learning Number Theory. He is very excited to know that Euler's Totient Function ...
ACT 1: Ash Counting Trees
Ash Ketchum has a weird rooted tree (read Notes sections if you don't know about tree data structure...
Largest Prime
A positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...
Karim Meets Gollum
After hearing about Bilbo's Ring that he found in the Misty Mountains, Karim the Hobbit decided to e...
Mystery of Fibonacci
Fibonacci sequence is a recursive sequence that depends on the following definition: Fib(N) = Fib(N-...
Help Chokro
Pias and Chokro are good friends. Pias's birthday is coming soon. So, Chokro wants to gift Pias an a...
Meena O Dosto Sele
Dosto sele Dipu and his friends used to disturb Rita Apu everyday on her way to school singing , " র...
Game Show
Alex is participating in a game show. Mr. Phil is the host of the game. Alex is provided with an arr...
Arko and Special Permutations
Arko is very fond of permutations. He can easily calculate the number of n length permutations. (In ...
Sofdor Ali and the Puzzle of Weights
Sofdor Ali is one of the most famous scientists of Bangladesh. He is also well known for his puzzle ...
Poltu and Digit Product
You are given two integer L and R. You have to find the summation of digit product of all number fro...
Hange and Her Gear
Hange has developed a special gear to attack the Cart Titan. The gear is a round, disc-like object. ...
LCM
Given an integer $L$, you have to find the product of two different integers such that their LCM (Le...
Switches
Technology is going ahead very fast. How can we know what will we get in future? One day you met a g...
Mr Makor And His Friends
Mr Makor has a set S of n integers. He calls a sequence of length k special if every element of the ...
Is It a Perfect Square?
Given some numbers, can you tell, if the product of these numbers are a perfect square or not? A num...
No Onion, No Cry
-Onions make us cry, don't they? They can make us happy too. -How? -Read the statement carefully! I...
K-Th Root
You will be given Q queries. In each query, you will be given two positive integers A and B. You hav...
Birthday Gift for SJ
Today is your best friend SJ’s birthday. You want to buy a birthday present for her. You want to buy...
Magician's Offer!
Rosi Vidmun is a greedy landlord who likes to grab as much land as he can. Currently he has P square...
Co-Prime Enemy Pair
Two integers A and B are known as co-prime or relatively prime if their greatest common divisor GCD ...
Toph uses cookies. By continuing you agree to our Cookie Policy.