Anina's Christmas Tree
This Christmas Anina and her friends have decided to make some Christmas trees to decorate her town....
Can You Help?
Hey, hello! Yes, I am talking to you, whoever is reading this problem statement. I know you are Robi...
Do you have Arithmophobia ?
Don’t worry! If you are a programmer, you might not have arithmophobia!! But Era has a weird phobia ...
Mysterious Quadrilateral
The four angles of a quadrilateral are defined as follows: ∠A = (X * Y)°, ∠B = (X * 2 * Y)°, ∠C = ∠D...
Gopal's Grand Gambit: Tracking Montri's Treachery
We're familiar with Krishnanagar, ruled by King Krishnachandra Roy and his council, including the no...
Nodes and Depth
From the above figure, the number of nodes for the first three depths are 3, 9, and 27. You will b...
You Are Programmer, You Have No Valentine!
One morning, Rose woke up early, and her husband, Alice, asked what was the matter. She told him, "I...
Farewell
Alice has found an array A containing n non-negative integers, where the i-th element is named Ai​. ...
Invertible Construction
You are given two integers n and k. We define an operation on a r×c binary matrix as follows: Choos...
Schrödinger's Brightness
Antman is in the quantum realm. He has n orbits which are concentric and circular. These are called ...
Suffix Cutting
You are given an array a consisting of n integers a1​,a2​,....,an​. The array is called beautiful if...
Festival of Sticks
In the vibrant village of Stickeville, an annual tradition known as the Festival of Sticks is celebr...
Just Another String Problem
A string is called good if the number of occurrence of every character in it is even. For example, “...
Cracking the Code
A group of cp enthusiastic students from University of Dhaka were on a fun journey. They brought alo...
pathan Moderate 10/12/32
Crash Course
Sawda and Alayna have received a remote-controlled toy robot as a gift from their beloved uncle, Mri...
ludirm Moderate 4/9/25
Newbie
Boba has opened a toy-manufacturing company that has n workers, where exactly m workers are newbies ...
ludirm Moderate 20/20/29
All In One Grid
Ryana, Fardin, and Bithi are best friends. One day, they were playing with dominos and a grid. Ryana...
Alice and Bob's Laziness
Father works for rail stations and his job is to supply and monitor equipment at the stations. The r...
Nitu and Pseudo-code
Last night, Nitu came across the following pseudo-code. She understood that this method would take t...
The Clash of Tactical Titans: Klopp vs. Ten Hag
In the intense world of football rivalries, where victory and defeat carry immense weight, two icon...
Safwan's Book Bonanza
A grand book fair is taking place in your city, showcasing a dazzling array of books and publication...
Queries, Queries Everywhere
You are given an array a of length n. You are also given q queries on the array and you have to proc...
Profitable Home
Milk and Mocha want to move to a new house in Coffeeland. They don’t like ugly corners sticking into...
Nirjhor Moderate 3/4/23
Nitu and Her Lucky String
Recently, Nitu has developed a keen interest in solving string-related problems. She possesses a spe...
A Lazy Statement
Milk has created an account in the newly launched social network Coffeebook. However, she cannot dec...
Nirjhor Moderate 2/3/8
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