Candidate Consonant
Alice and Bob are playing with string. Alice gives Bob a string S with the following information: S...
A GRE Themed Contest Problem
Sadman and Najkin were solving a GRE math problem, Rejbah another friend of theirs listened to that ...
Phi Numbers in Range!
In number theory, Euler’s phi function, denoted as ϕ(n), is an arithmetic function which counts the ...
Interesting Pile Game
Turja and Akash are playing an interesting game. Initially a pile of N stones is given to them. Each...
DP Moderate 39/46/125
Help!
I want to solve a simple enough problem, but I am so so busy that I don't have enough time. So, coul...
Moderate 9/16/75
Tour
Department of CSE students of the Ahsanullah University of Science and Technology loves to tour when...
Moderate 45/54/104
Buildings
There are n buildings in a row. The height of the i-th building is hi​. You have ৳k. It is the amoun...
Convert String Into Palindrome
A palindrome is a word, number, phrase, or other sequence of characters which reads the same backwar...
Digit Printing
You will be given two numbers and an operation to do with them. You just need to print the output of...
Bad Cook
Mr. Meme has recently moved to a foreign country named "Gloryland" for study purpose. There, he has ...
Cunning Comedian
Professor Mahir is developing some AI using some famous sitcom characters’ characteristics. The most...
Moderate 5/10/51
Rainy Day
You have to complete N tasks tomorrow, where each task can last for any number of minutes. Each task...
Gujob
You probably heard the name of 'Kababdesh', where people are very fond of kababs. Everyone live ther...
K-String
We will call a string K-String if it consists of K distinct characters. For example, if K is 3 then ...
Unique Substrings Query
You will be given a string s of length n. Consider substring s[i,n] (where i is the starting positio...
Zoba the Misleader
Zoba has 3 strings, named S1​, S2​ and S3​. He wanted to make a tough problem for Mihaf with these s...
Going for Relief
Thanos is changed. He helps the helpless. He recently makes a plan to go for relief to the flood-aff...
SAtiq The Dengue Fighter
Dengue, a mosquito-borne viral disease, has been spreading rapidly in the past few years. This year ...
Unique Relief
Thanos has now figured out how to visit all the houses in the flood-affected area. However, now he h...
Colorful Friendship
N friends are playing a game. N−1 of them have seated circling one person. So, there are N−1 adjacen...
Balanced Relief
Thanos just finished his relief work. We all know that Thanos loves balanced things. So he finds som...
Shimanto's Parallelogram
Shimanto loves to draw parallelograms. His parallelogram drawing's length is 10 units and width is 8...
Card Distribution
Four players want to play a game of cards. There are N cards with them. They can only play a game if...
Moderate 10/14/17
Paper Folding
Tonmoy has a paper of length L mm and height of H mm. For any of his purpose he wants to fold it. Bu...
Moderate 5/10/48
Shape of Quadrilateral
Atcoder is a name of famous online judge. Here lhe problem statement is described briefly. This prob...
Moderate 73/93/183
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