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... |
Relatively Prime Given a positive integer N, determine how many of the integers between 1 and N are co-prime with N. ... |
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... |
Omae Wa Mou Shindeiru Itachi and Sasuke are trying to beat Kabuto, the caster of an awesome magical spell (or you can say ... |
Largest Prime A positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe... |
Mystery of Fibonacci Fibonacci sequence is a recursive sequence that depends on the following definition: Fib(N) = Fib(N-... |
Meena O Dosto Sele Dosto sele Dipu and his friends used to disturb Rita Apu everyday on her way to school singing , " র... |
Find the primes? For a positive integer n, let’s define a function f: f(n) = sum of positive integers less than n whi... |
Day-Month-Year Meena is a talented girl in her class. She likes to brainstorm in her leisure times. One day, she wa... |
Hange and Her Gear Hange has developed a special gear to attack the Cart Titan. The gear is a round, disc-like object. ... |
Switches Technology is going ahead very fast. How can we know what will we get in future? One day you met a g... |
Rivalry Friends Ryo and his girlfriend love to think about challenges. One day his girlfriend gave him a challenge t... |
The Game Is Back On Moriarty is bored again. When he gets bored, the only thing he wants to do is play with Sherlock. So... |
Admission Gift During admission exams in the city of RR (Royal Royal city), the students of RR University of Engine... |
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... |
Meera and Solo Chocolates Meera bought candies from the store. She is now going to distribute those among her N friends. She m... |
Christmas Tree Professor Rio has an amazing Christmas tree. Unlike other trees, this Christmas tree has some specia... |
Is Bita Happy? Bita has learned bitwise-operations recently. She is doing some experiments with these operations no... |
Solve This Giveaway Problem First This problem is straightforward and easy. You will be given two integers N, P and a list L of positi... |
Beauty of AP Solving problems is fun in competitive programming, right? So let’s solve a fun task today too :P. 1... |
Perfect Points Perfect lines are the lines y=mx+c such that m and c are positive integers. Perfect points are the p... |
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... |
Is It a Perfect Square? Given some numbers, can you tell, if the product of these numbers are a perfect square or not? A num... |
Birthday Gift for SJ Today is your best friend SJ’s birthday. You want to buy a birthday present for her. You want to buy... |