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...
Math Very Easy 318/339/595
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 ...
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