Do you have Arithmophobia ?
Don’t worry! If you are a programmer, you might not have arithmophobia!! But Era has a weird phobia ...
The Cipher
In an ancient civilization, shrouded in the mists of time, there existed a group of mathematicians k...
Easy Prime!
There are N numbers in an array. You will have Q queries. In each query, you can make 2 operations. ...
Prime Factors
Given an integer N, can you determine its prime factors?
Tom Is a Good Mentor
Today is the first day of the little mouse Jerry at school. Famous mathematician Tom is his teacher....
The Easiest Problem
Tareq Abrar is a lazy programmer. He has a friend named Aminvai, who is famous for his amazing skill...
N-th Prime
In this problem, you will have to print the n-th prime number. The first few prime numbers are given...
Largest Prime
A positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...
Arrange the Bricks!
You have $N$ bricks two dimensional bricks of the dimension $1 \times 2$. The bricks are rotatable i...
Modulo
Let's get straight into the problem. In ths problem, here will be multiple test cases. In each test ...
Relatively Prime
Given a positive integer N, determine how many of the integers between 1 and N are co-prime with N. ...
Secret Meeting
The world is terrified by Pandas! After a miraculous chemical explosion, they became smarter; and ev...
Left Prime
Prime numbers are the ones which can only be divided by 1 and the number itself. 2, 3, 5, 7, 11, 13 ...
Chowdhury Saheb & the Numbers
You like short description of problems? Me too! Let's go to an easy problem. You are given an array ...
Love Letters!
Lately Fahim is getting a lot of love letters. A LOT of love letters. Since he is confused about whi...
Equation Equals Hazards
You are given the equation, GCD(A,M)=1. You have to determine whether there exists at least one inte...
Oh Functions
Let’s define functions f and g as: f(x) = 2 * ( f(x-1) + g(x-1) - 1 ) * ( f(x-1) + g(x-1) - 3 ) + 12...
I Did Not Do the Assignment
Professor Petr is very angry over some of his students now-a-days for not doing assignment. He wants...
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...
Laali Vs Bessie
One day Raju discovered USACO and from that day he would spend all his time solving problems. Laali ...
Meena O Dosto Sele
Dosto sele Dipu and his friends used to disturb Rita Apu everyday on her way to school singing , " র...
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 ...
Fast Co-Prime
Two numbers A and B are called co-prime if the only common positive factor of the two numbers is 1. ...
Correct the Sieve
Sieve of Eratosthenes is a fast algorithm for finding prime numbers in larger ranges. According to W...
Trick or Trees
One day, Raju was out roaming in the woods,when he suddenly stumbled upon a large garden. There were...
Toph uses cookies. By continuing you agree to our Cookie Policy.