Counting Matrices
Given a natural number N and a prime p, let’s define a special set Zp​={0,1,2,…,p−1}. Now count the ...
Challenging Lover
Greetings to all of you. You must have heard about our star programmer Rafat bhai. One day he went o...
Birthday Surprise
Adnan bhai, Priyom dada and Shuvo bhai are the members of MU_Kheloars. They recently got graduated a...
Mina and Raju
Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina...
Magic Number
Jack loves to play with numbers. One day, while he was playing with numbers he found something inter...
Unique Relief
Thanos has now figured out how to visit all the houses in the flood-affected area. However, now he h...
Pudding and Coins
Pudding is playing a game that has n levels. There are a total of n(n+1)/2 coins spread out among th...
Phi Numbers in Range!
In number theory, Euler’s phi function, denoted as ϕ(n), is an arithmetic function which counts the ...
A GRE Themed Contest Problem
Sadman and Najkin were solving a GRE math problem, Rejbah another friend of theirs listened to that ...
A Lack of Common Divisors
Given a positive integer N, determine how many of the integers between 1 and N are co-prime with N. ...
Meera and Solo Chocolates
Meera bought candies from the store. She is now going to distribute those among her N friends. She m...
String in a Grid 2
Prof. Bari loves to play with string. He is also very skilled in drawing. One day he was drawing a g...
GCD, Divisor, Count!
I like short statements and you should too so here's the statement without further ado You are give...
Life of Phi
The Great Khami is learning Number Theory. He is very excited to know that Euler's Totient Function ...
Mystery of Fibonacci
Fibonacci sequence is a recursive sequence that depends on the following definition: Fib(N) = Fib(N-...
Tree Business
To become economically stable, Saturn has come up with a new kind of business, tree business. At fir...
Predict The Frequency
Luis was sleeping. He suddenly woke up with three positive integers N, M and X. He told his younger ...
Omae Wa Mou Shindeiru
Itachi and Sasuke are trying to beat Kabuto, the caster of an awesome magical spell (or you can say ...
Bad Cook
Mr. Meme has recently moved to a foreign country named "Gloryland" for study purpose. There, he has ...
Sofdor Ali's Restaurant
One of Sofdor Ali’s greatest accomplishment was his Biriyani restaurant! Unlike the traditional rest...
Day-Month-Year
Meena is a talented girl in her class. She likes to brainstorm in her leisure times. One day, she wa...
Admission Gift
During admission exams in the city of RR (Royal Royal city), the students of RR University of Engine...
Sofdor Ali and Radioactivity
Sofdor Ali is the craziest and clumsiest scientist in Bangladesh. He tries to maintain the safety me...
Dilu's Library
Dilu is a young boy who loves mathematics. He recently learned how to code. He was interested in sol...
Genius Needs Help
You all know Emrul bhai, right? He is a genius guy. He knows how to add two integer numbers and so d...
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