Attacking Drones
Bytelandian air force has designed a new weapon system. It is similar to a drone but instead of shoo...
Arithmetic Sequence (Easy)
Arithmetic Sequence is a sequence of numbers where the difference between two consecutive numbers ar...
Pakna And His Polygon
Pakna in a wise man. He loves solving problems but always end up with more problems. This is obvious...
Dominoes Forever
Once when I was little, my father took me to a tobacco shop! It is surprising, but true. He asked th...
Word Count
Counting the frequencies of words are a basic and important task in natural language processing. In ...
Knapsack Revisited
Given description of n items (weight and value) and a knapsack of capacity weight W, you have to cal...
Moderate 9/19/109
Arunima City
After the big decentralization process, where Dhaka city's population were relocated, a new city cal...
Smart Query Handler
Bit operators perform bit-wise operations between two binary numbers. Wikipedia says, binary operati...
How Many Paths?
You are at the top left corner [position (1,1)] of a R×C grid. Your destination is bottom right corn...
Arithmetic Sequence (Hard)
Arithmetic Sequence is a sequence of numbers where the difference between two consecutive numbers ar...
Math Very Easy 274/292/483
Friendship Database
You have created a new social media for testing the irrationality of human behavior. In order to con...
Power and Mod
Exponentiation is a mathematical operation, written as b n , involving two numbers, the base b and t...
Chemical Reaction
In this problem you will be dealing with chemical reaction. In real life, the simulation of a chemic...
Correct the Sieve
Sieve of Eratosthenes is a fast algorithm for finding prime numbers in larger ranges. According to W...
Building the Wall 2
The story of walls continue, here's a quick recap: Building walls around a country has become a popu...
Simple Operation
Mr. X is a school teacher. He teaches C programming to the students. In every class, he gives some s...
Automated Disease Prediction System
An Automated Disease Prediction system is going to be developed by the students of Leading Universit...
Prisoners
Let me tell you a story of a dangerous prison. There were N prisoners in that prison. It is guarante...
Mahmud vs. Ridwan (Hard)
Mahmud is playing a game with Ridwan. Mahmud is given N cartesian points by Ridwan. Mahmud can conne...
Sofdor Ali and the Puzzle of Weights
Sofdor Ali is one of the most famous scientists of Bangladesh. He is also well known for his puzzle ...
Grasshopper and The Ant
In a field one summer's day a grasshopper is hopping about and is coding to its heart's content for ...
Arya’s Counting
Little Arya has learnt to count the highest and the lowest number recently. She can easily find out ...
Count the Odds
Sometimes, contestants tend to look for patterns in problem descriptions. They try to figure out the...
Help Alex Jhon!
Alex Jhon is a very good man in his village. He always helps his neighbors and poor people as much a...
Around the Square
You are given a square and there are four circles which are overlapping the square. The center of ea...
Toph uses cookies. By continuing you agree to our Cookie Policy.