For Loop FTW
You are given an integer N which can be represnted as the product of two positive integers. $ N = a_...
Relatively Prime
Given a positive integer N, determine how many of the integers between 1 and N are co-prime with N. ...
Find the primes?
For a positive integer n, let’s define a function f: f(n) = sum of positive integers less than n whi...
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...
Birthday Surprise
Adnan bhai, Priyom dada and Shuvo bhai are the members of MU_Kheloars. They recently got graduated a...
Magic Number
Jack loves to play with numbers. One day, while he was playing with numbers he found something inter...
Fast Co-Prime
Two numbers A and B are called co-prime if the only common positive factor of the two numbers is 1. ...
A GRE Themed Contest Problem
Sadman and Najkin were solving a GRE math problem, Rejbah another friend of theirs listened to that ...
Ishtiaque and the Rabbit
Mr Ishtiaque is in trouble. A few months ago, he bought 2 rabbits. He wanted to have two pet rabbits...
Challenging Lover
Greetings to all of you. You must have heard about our star programmer Rafat bhai. One day he went o...
N-th Prime
In this problem, you will have to print the n-th prime number. The first few prime numbers are given...
Easy Prime!
There are N numbers in an array. You will have Q queries. In each query, you can make 2 operations. ...
Is It Perfect
Bob has an initial array D of length n . Alice is a good friend of Bob. So Bob challenges Alice to f...
Life of Phi II
You will be given two integers n and m where GCD(n,m)=1. You have to tell that how many numbers are ...
Is It A Square?
Shikamaru is the most brilliant student of his class. He is very good at Mathematics. Mr. Asuma is t...
Co-Prime Enemy Pair
Two integers A and B are known as co-prime or relatively prime if their greatest common divisor GCD ...
K-Th Root
You will be given Q queries. In each query, you will be given two positive integers A and B. You hav...
Arko and Special Permutations
Arko is very fond of permutations. He can easily calculate the number of n length permutations. (In ...
Life of Phi
The Great Khami is learning Number Theory. He is very excited to know that Euler's Totient Function ...
Hidden Graph
There is an unweighted, undirected hidden graph. You are given an integer range from L to R. There a...
I Am Good 2.0
I am trying to become a good guy, giving contestants as little pain as possible. So, this problem is...
GCD Grid
You are given two integers N and M. You have to make a grid of N∗M size by following these rules: E...
Easy Factorial?
It is time to show your performance on number theory. Why so late? Come to the point. You are given...
Crypto-Number
Walt and Gus have a great rivalry. Recently Gus has developed a cryptographic system. Walt is trying...
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