Dengue Once upon a time there was a king. He had a huge kingdom and the king was very kind. All of his subj... |
String Play Milo has a string S of length L. Tutu picks a random prefix and Mota picks a random suffix of S. Now... |
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... |
Power of Army Recently Chikanu declared war against Shukanu. To win the battle against Shukanu he wants to form an... |
Co-Prime Enemy Pair Two integers A and B are known as co-prime or relatively prime if their greatest common divisor GCD ... |
Calculate the Sum If You Can This problem deals with the following expression: 1−2+1−2+1−2+1−2+1−2+1−2+1−2+... Given n, you have ... |
Fast Co-Prime Two numbers A and B are called co-prime if the only common positive factor of the two numbers is 1. ... |
Thought Game Sadia is one of the nicest persons you will ever meet. In fact, she is one of those persons who like... |
Equation Equals Hazards You are given the equation, GCD(A,M)=1. You have to determine whether there exists at least one inte... |
Fair Distribution Mr. Forhad has X children. One day, on his way home, he bought Y chocolates for his children. He doe... |
Magician's Offer! Rosi Vidmun is a greedy landlord who likes to grab as much land as he can. Currently he has P square... |
Window Seats on a Bus Karim is traveling by bus. He has the window seat. However, he has to share the window with the pass... |
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 ... |
Meena Meets The Marauders December 14, 1975 Hogwarts School of Witchcraft and Wizardry It’s been a long long day. The Marauder... |
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... |
Circle and Square Meena and Raju are learning about different shapes. Meena's favourite shape is Circle while Raju lik... |
Mag the Mighty Kaidul The winter is about to come. Mag the Mighty Kaidul is waiting for it for days. It is his favorite se... |
A Girl's Story Meena (Bengali: মীনা) is a fictional character who stars in the South Asian children's television sh... |
This Is Too Hard ☹ Many many years ago there was a small country. And all the people there were very weird. They liked ... |
How Many Ways? Regular problem solvers starts their journey by solving ad hoc and number theory. After getting the ... |
Little T2 and Dead Cats The planet earth has become peaceful again because all the cats are dead. An evil robot named Xorged... |
Boltu vs Balti Boltu and Balti are two friends. Boltu is a great programmer whereas Balti is a newbie programmer. B... |
Sofdor Ali and Radioactivity Sofdor Ali is the craziest and clumsiest scientist in Bangladesh. He tries to maintain the safety me... |
Red and Green Suppose, there is an array of N integers. Each index of the array is either red or green. The first ... |
Sofdor Ali's Restaurant One of Sofdor Ali’s greatest accomplishment was his Biriyani restaurant! Unlike the traditional rest... |