Ishtiaque and the Rabbit

Mr Ishtiaque is in trouble. A few months ago, he bought 2 rabbits. He wanted to have two pet rabbits...

Switches

Technology is going ahead very fast. How can we know what will we get in future? One day you met a g...

N-th Prime

In this problem, you will have to print the n-th prime number. The first few prime numbers are given...

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...

Magic Number

Jack loves to play with numbers. One day, while he was playing with numbers he found something inter...

GCD Plus LCM

In this problem you will be given two integers a, b. You have to answer if GCD(a, b) + LCM(a, b) = a...

Unique Relief

Thanos has now figured out how to visit all the houses in the flood-affected area. However, now he h...

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 ...

Relatively Prime

Given a positive integer N, determine how many of the integers between 1 and N are co-prime with N. ...

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. ...

Life of Phi

The Great Khami is learning Number Theory. He is very excited to know that Euler's Totient Funct...

Exponential Growth

You will be given two integers X and N, you have to calculate XN modulo 1000000007.

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 a...

Tree Business

To become economically stable, Saturn has come up with a new kind of business, tree business. At fir...

Hange and Her Gear

Hange has developed a special gear to attack the Cart Titan. The gear is a round, disc-like object. ...

Omae Wa Mou Shindeiru

Itachi and Sasuke are trying to beat Kabuto, the caster of an awesome magical spell (or you can say ...

Modulo

Let's get straight into the problem. In ths problem, here will be multiple test cases. In each t...

Day-Month-Year

Meena is a talented girl in her class. She likes to brainstorm in her leisure times. One day, she wa...