m-Beautiful Numbers
An m-Beautiful Number is a number which is divisible by $m$ and the sum of the digits is also divisi...
Shopping is Fun!!
Mr. Hikiko passed his Eid without shopping because of ongoing lockdown. Now, Govt. removed the lockd...
Penguins of Madagaskar
You all heard about the Penguins of Madagaskar. They work for the penguin kind and loves cuteness. O...
Video Game Pro
Shefin is playing a video game. In this game, there will be $N$ buildings in a row. $i^{th}$ buildin...
Orchid Division
Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row...
Messy Table
Akib is a very good student but his reading table is very messy. One Friday afternoon, Akib is sitti...
Chocolate
There is a shop named Chocolove in the Codeland. There are many chocolates in the shop. Each chocola...
Defeat in Final Battle
Sifatul Islam is a great fan of Iron man. He is planning to make a suit for iron man. The suit can s...
Third Dimension
Mr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across...
Buckets of Water
In Abby's area the water is available in the tap only from 6AM to 8AM. So, Abby thought she would st...
Ekupai
Hacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer...
Fivefold Removals
Alice and Bob are playing a simple game on marbles. They have a bucket containing N marbles, and the...
Happiness
If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ...
Babur Biye
Babu is getting married. Babu's fiancé is a prominent programmer of Bangladesh. She told Babu to sol...
My Small Number
You are given two integers N and M. Find another integer X divisible by M that has the same number o...
Game of Destruction
You are playing the deadly game Game of Destruction. You will be given a list of integers. In each s...
Perseus and The New Challenge
The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
Move It!
Few of my friends are working on a game called “Move It!”. It's a tile-based game played on an $n\ti...
Happy Sub-Sequence
Recently Alex has participated in a programming contest. He became 1st runner up. He couldn't solve ...
Polygon Construction (Hard)
Meera in going to picnic with her friends. They are going to have lots of fun. They will be doing va...
No GCD
You are given N integers. Each integer is square free (i.e. it has no divisor which is a square numb...
The Game of Rocks
Alice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co...
Burger King
Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ...
Is It Perfect
Bob has an initial array D of length n . Alice is a good friend of Bob. So Bob challenges Alice to f...
Random Graphs
This problem is very easy. There's a graph of $N$ nodes. Each edge $u-v$ ($u >= v ; u = v$ is possib...
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