N-th Prime
In this problem, you will have to print the n-th prime number. The first few prime numbers are given...
Hidden Graph
There is an unweighted, undirected hidden graph. You are given an integer range from L to R. There a...
Kotlin Heroes
The International Collegiate Programming Contest is an algorithmic programming contest for college s...
Correct the Sieve
Sieve of Eratosthenes is a fast algorithm for finding prime numbers in larger ranges. According to W...
The Cipher
In an ancient civilization, shrouded in the mists of time, there existed a group of mathematicians k...
Prime Factors
Given an integer N, can you determine its prime factors?
Laali Vs Bessie
One day Raju discovered USACO and from that day he would spend all his time solving problems. Laali ...
Challenging Lover
Greetings to all of you. You must have heard about our star programmer Rafat bhai. One day he went o...
LCM
Given an integer $L$, you have to find the product of two different integers such that their LCM (Le...
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...
Do you have Arithmophobia ?
Don’t worry! If you are a programmer, you might not have arithmophobia!! But Era has a weird phobia ...
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 ...
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+b is ...
Magic Number
Jack loves to play with numbers. One day, while he was playing with numbers he found something inter...
Left Prime
Prime numbers are the ones which can only be divided by 1 and the number itself. 2, 3, 5, 7, 11, 13 ...
Secret Meeting
The world is terrified by Pandas! After a miraculous chemical explosion, they became smarter; and ev...
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...
Largest Prime
A positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...
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...
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. ...
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