N'th PrimeIn this problem, you will have to print the nth prime number. The first few prime numbers are given ...

CryptoNumberWalt and Gus have a great rivalry. Recently Gus has developed a cryptographic system. Walt is trying...

Correct the SieveSieve of Eratosthenes is a fast algorithm for finding prime numbers in larger ranges. According to W...

Easy Prime!There are N numbers in an array. You will have Q queries. In each query, you can make 2 operations. ...

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

Rivalry FriendsRyo and his girlfriend love to think about challenges. One day his girlfriend gave him a challenge t...

Zacob The BatsmanIt’s known that Zacob is a reliable batsman of LU CSE Cricket Team. Also as long as he is on the cre...

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

Love Letters!Lately Fahim is getting a lot of love letters. A LOT of love letters. Since he is confused about whi...

Is It a Perfect Square?Given some numbers, can you tell, if the product of these numbers are a perfect square or not? A nu...

Lucky ShirtMarjokes is a very famous comedy personality in Byteland. He is a poet, a writer, a singer and an ac...

Fast CoPrimeTwo numbers A and B are called coprime if the only common positive factor of the two numbers is 1. ...

Left PrimePrime numbers are the ones which can only be divided by 1 and the number itself. 2, 3, 5, 7, 11, 13 ...

Tree BusinessTo become economically stable, Saturn has come up with a new kind of business, tree business. At fi...

Challenging LoverGreetings to all of you. You must have heard about our star programmer Rafat bhai. One day he went o...

A Lack of Common DivisorsGiven a positive integer N, determine how many of the integers between 1 and N are coprime with N. ...

I Am GoodI am trying to become a good guy, because it doesn’t take money to become good. So here’s a short an...

Equation Equals HazardsYou are given the equation, GCD(A,M) = 1. You have to determine whether there exists at least one in...

Life of PhiThe Great Khami is learning Number Theory. He is very excited to know that Euler’s Totient Function ...

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

Kitchen DecorateShira has now decided to decorate her kitchen of height H and width W more precisely, she wants to ...

Birthday Gift for SJToday is your best friend SJ’s birthday. You want to buy a birthday present for her. You want to buy...

Meera and Solo ChocolatesMeera bought candies from the store. She is now going to distribute those among her N friends. She m...

Laali Vs BessieOne day Raju discovered USACO and from that day he would spend all his time solving problems. Laali ...

Relatively PrimeGiven a positive integer N, determine how many of the integers between 1 and N are coprime with N. ...

Sofdor Ali and the Puzzle of WeightsSofdor Ali is one of the most famous scientists of Bangladesh. He is also well known for his puzzle ...

Magician's Offer!Rosi Vidmun is a greedy landlord who likes to grab as much land as he can. Currently he has P square...

CoPrime Enemy PairTwo integers A and B are known as coprime or relatively prime if their greatest common divisor GCD ...

Secret MeetingThe world is terrified by Pandas! After a miraculous chemical explosion, they became smarter; and ev...

Oh FunctionsLet’s define functions f and g as: f(x) = 2 * ( f(x1) + g(x1)  1 ) * ( f(x1) + g(x1)  3 ) + 1...

Largest PrimeA positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...

The Game Is Back OnMoriarty is bored again. When he gets bored, the only thing he wants to do is play with Sherlock. So...
