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... |
The Easiest Problem Tareq Abrar is a lazy programmer. He has a friend named Aminvai, who is famous for his amazing skill... |
Help Lazy Tareq There is a boy named Tareq Abrar who is very lazy. He likes sleeping. He also likes eating. His moth... |
Admission Gift During admission exams in the city of RR (Royal Royal city), the students of RR University of Engine... |
Mr Makor And His Friends Mr Makor has a set S of n integers. He calls a sequence of length k special if every element of the ... |
Crypto-Number Walt and Gus have a great rivalry. Recently Gus has developed a cryptographic system. Walt is trying... |
Joker's GCD Test Joker has a sequence P of n integers. Each two elements in the sequence are pairwise distinct. He de... |
Tree Business To become economically stable, Saturn has come up with a new kind of business, tree business. At fir... |
Distribution of Relief "Please follow all instructions provided by your local health authorities." Due to Coronovirus epide... |
Find the primes? For a positive integer n, let’s define a function f: f(n) = sum of positive integers less than n whi... |
Meena O Dosto Sele Dosto sele Dipu and his friends used to disturb Rita Apu everyday on her way to school singing , " র... |
Day-Month-Year Meena is a talented girl in her class. She likes to brainstorm in her leisure times. One day, she wa... |
Do you have Arithmophobia ? Don’t worry! If you are a programmer, you might not have arithmophobia!! But Era has a weird phobia ... |
Zootopia Judy Hopps , a rookie officer joined Zootopia Police Department. She was fond of working sincerely f... |
Meera and Solo Chocolates Meera bought candies from the store. She is now going to distribute those among her N friends. She m... |
Secret Meeting The world is terrified by Pandas! After a miraculous chemical explosion, they became smarter; and ev... |
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... |
Composite Facts Let's define two functions F and S: F(n) = 1 + n! S(n,m) = Sum of first m non-prime integers which ... |
Jhamela, Once Again You are given n positive integers as an array. Also, you are given an integer k. Now, try to find a ... |
Complex Tashreef Tashreef finally received the Zuinness Journal of Galactic records recognition for being the most co... |
Perfect Points Perfect lines are the lines y=mx+c such that m and c are positive integers. Perfect points are the p... |
I Am Good 2.0 I am trying to become a good guy, giving contestants as little pain as possible. So, this problem is... |
Trust Me , You Can Solve It ;-) Nafis Shahriar loves to do codeforces programming contests. He is the first candidate master in code... |
Omae Wa Mou Shindeiru Itachi and Sasuke are trying to beat Kabuto, the caster of an awesome magical spell (or you can say ... |