Complex Tashreef
Tashreef finally received the Zuinness Journal of Galactic records recognition for being the most co...
Hidden Graph
There is an unweighted, undirected hidden graph. You are given an integer range from L to R. There a...
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...
Choice Is Yours
For not participating on contests regularly, Hasnaine (read Has9) has decided to kill Santo. But nob...
GCD Grid
You are given two integers N and M. You have to make a grid of N∗M size by following these rules: E...
Magic Number Count
Magic number is an integer number, which is only divisible by itself and total number of divisor wil...
Jimmy and Jamy
Jimmy and Jamy are two brothers. They like to play with colored marble. Jimmy has N boxes with three...
Yet Another Hello World
The greatest company, Pied Piper, is developing encryption systems. The company has already built Md...
Bi-Element Subsequence
You are participating in a game show. In the final round, the host pulls up a large sequence of posi...
Once Upon a Time in Dhaka
Dhaka is one of the mega cities of Bangladesh. At different times, Dhaka was entitled differently by...
Object Detection
Object detection is a computer vision technique that is used to identify and locate objects in an im...
Counting Matrices
Given a natural number N and a prime p, let’s define a special set Zp​={0,1,2,…,p−1}. Now count the ...
The Matrix
In the metaphysical world of the Matrix, different people make their chessboards with their own spec...
Misti Chor
Bhootu likes to eat misti. As he is a mischievous kid, he has decided to steal misti from the nearby...
Powerful Number
Efa loves numbers. She thinks a number is powerful if it can be expressed in the form xy where x and...
Divisible LCM
You have a sequence a1​, a2​, a3​, …, an​ of n integers and q queries. In each query, you are given ...
Many Paths, Many Costs
Alice and Bob are visiting Byteland. They are observing the map of this country. Surprisingly, the m...
Maximum Distance
You know it’s hard seeing your favorite person being interested in another one instead of you. At th...
Pudding and Coins
Pudding is playing a game that has n levels. There are a total of n(n+1)/2 coins spread out among th...
Functions of the Hell's Kitchen
The District Attorney(DA) of Hell’s Kitchen has been defined following functions. GCD(n,m): Returns ...
Marbles Per Second
You have a rooted tree of n nodes. If we traverse the tree from the root, let’s say the traversing o...
Shine on You Crazy Diamond
This problem is authored by one of our late friends, Sifat, who unexpectedly left us last year. He w...
SUM Equals LCM
Given N, print a sequence of N positive integers A1​,A2​,…,AN​ that satisfy the following conditions...
Help Tanjiro
Mojan kibutsuji is an evil demon who eats people and can turn people into demon. Tanjiro is a swords...
Tricky Ratio
Given the radius (r) of a circle you have to calculate the ratio between the circumference (C) of th...
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