N-th Prime
In this problem, you will have to print the nnn-th prime number. The first few prime numbers are giv...
Magic Number
Jack loves to play with numbers. One day, while he was playing with numbers he found something inter...
For Loop FTW
You are given an integer N which can be represnted as the product of two positive integers. N=a1∗a2 ...
Relatively Prime
Given a positive integer N, determine how many of the integers between 1 and N are co-prime with N. ...
Ishtiaque and the Rabbit
Mr Ishtiaque is in trouble. A few months ago, he bought 2 rabbits. He wanted to have two pet rabbits...
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...
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 in...
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...
Kitorp and His Love
Kitorp loves his wife Asiar(who is a problem solver as well) but he loves math more. To get his atte...
Challenging Lover
Greetings to all of you. You must have heard about our star programmer Rafat bhai. One day he went o...
A Lack of Common Divisors
Given a positive integer NNN, determine how many of the integers between 1 and NNN are co-prime with...
A GRE Themed Contest Problem
Sadman and Najkin were solving a GRE math problem, Rejbah another friend of theirs listened to that ...
Life of Phi
The Great Khami is learning Number Theory. He is very excited to know that Euler's Totient Function ...
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...
Birthday Surprise
Adnan bhai, Priyom dada and Shuvo bhai are the members of MU_Kheloars. They recently got graduated a...
Prime Range
Prime Numbers are such numbers which are only divided by 1 and the number itself. 2, 3, 5, 7, 11, 13...
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...
Exponential Growth
You will be given two integers XXX and NNN, you have to calculate XNX^NXN modulo 1000000007.
Dividing the Gifts
Today is a very good day in CSEmpur because Tuktuki has bought N gifts! Tuktuki wants to give these ...
Easy Factorial?
It is time to show your performance on number theory. Why so late? Come to the point. You are given...
K-Th Root
You will be given Q queries. In each query, you will be given two positive integers A and B. You hav...
Is Bita Happy?
Bita has learned bitwise-operations recently. She is doing some experiments with these operations no...
Find the primes?
For a positive integer n, let’s define a function f: f(n) = sum of positive integers less than n whi...
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