The Matrix In the metaphysical world of the Matrix, different people make their chessboards with their own spec... |
Arshiya's First Code Arshiya is just three and she already started programming. She has learned how to write loops. Recen... |
Once Upon a Time in Dhaka Dhaka is one of the mega cities of Bangladesh. At different times, Dhaka was entitled differently by... |
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 ... |
How Many Ways? Regular problem solvers starts their journey by solving ad hoc and number theory. After getting the ... |
Thought Game Sadia is one of the nicest persons you will ever meet. In fact, she is one of those persons who like... |
Black or White Imagine an infinite chess board. The cell on the bottom-left most corner is labelled (0,0). The cell... |
Opera & B2G1 “Don’t practice until you get it right. Practice until you can’t get it wrong” Bangladesh is the ho... |
SUM Equals LCM Given N, print a sequence of N positive integers A1,A2,…,AN that satisfy the following conditions... |
Roll the Dice You have got a 6 sided dice. In a single roll, it may show any integers from 1 to 6. You are going t... |
Plantik It is Argentina vs France in the football world cup final of 2022 in a parallel universe. You are a ... |
Chief Thief A group of thieves steal only money. Every morning they deposit the money to their leader. The leade... |
Learning New Algorithms Every Day Shak is a new programmer and he knows nothing about algorithms. He has made a plan and decided to le... |
Arya and OR Little Arya loves to play with numbers. She likes to play in different ways with them. One day she s... |
Sofdor Ali and Histogram The Great Sofdor Ali is now interested in competitive programming. Seeing this, his friend and also ... |
Wizard Duel Wizard Duel is approaching soon in Hogwarts and the students of the Dueling Club are absolutely thri... |
Red and Green Suppose, there is an array of N integers. Each index of the array is either red or green. The first ... |
Boltu vs Balti Boltu and Balti are two friends. Boltu is a great programmer whereas Balti is a newbie programmer. B... |
Nusrat's Treat We all know how much Nusrat loves chocolate! She gets a lot of chocolate from her friends and family... |
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... |
Kinderbijslag Kinderbijslag (children's allowance) is a social security payment which is distributed to the parent... |
Nodes and Depth From the above figure, the number of nodes for the first three depths are 3, 9, and 27. You will b... |
Misti Chor Bhootu likes to eat misti. As he is a mischievous kid, he has decided to steal misti from the nearby... |
Area In this problem, you will be given a square which has a length of n. Co-ordinates of the square are ... |
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 ... |