# Math Problems

#### Power and Mod

Exponentiation is a mathematical operation, written as b n , inv...

#### Boltu vs Balti

Boltu and Balti are two friends. Boltu is a great programmer whe...

#### Circle of Boltu

Boltu and Poltu are two best friends. Boltu loves to play games ...

#### Counting Is Difficult

East West University Computer Programming Club is organizing a p...

#### Circles in a Rectangle

Two circles are placed inside a rectangle. They do not intersect...

#### An Arithmetic Problem

A sequence is an arithmetic sequence if every two successive num...

#### How Cow!

There is a cow in a village. She eats as much grass as she wants...

#### Count the Odds

Sometimes, contestants tend to look for patterns in problem desc...

#### A Girl's Story

Meena (Bengali: মীনা) is a fictional character who stars in the ...

#### Arunima City

After the big decentralization process, where Dhaka city’s popul...

#### Compute the Combination

Let P = C(N,0) - C(N,1) + C(N,2) - C(N,3) + … + C(N,N); where C(...

#### Arithmetic Sequence (Easy)

Arithmetic Sequence is a sequence of numbers where the differenc...

#### Alice and the Chessboard

It’s Sunday afternoon, and Alice is in her room trying to figure...

#### Old Magic!

You: Guess an integer number, but don’t tell me. Your friend: Ok...

#### Around the Square

You are given a square and there are four circles which are over...

#### GPA Calculator

Shibli is a very good student. He is very regular and attentive ...

#### Magic Square

A little boy Towhid is good at mathematics. He solves a lot of m...

#### Window Seats on a Bus

Karim is traveling by bus. He has the window seat. However, he h...

#### Red and Green

Suppose, there is an array of N integers. Each index of the arra...

Today is your best friend SJ’s birthday. You want to buy a birth...

#### Be Like Hasib

Hasib, the famous programmer, uses a little game when he teaches...

#### Event Timing

Bob is making a new application for Android phones. Front-end of...

#### Prisoners

Let me tell you a story of a dangerous prison. There were N pris...

#### Sofdor Ali and the Puzzle of Weights

Sofdor Ali is one of the most famous scientists of Bangladesh. H...

#### Sofdor Ali and Histogram

The Great Sofdor Ali is now interested in competitive programmin...

#### Arya and OR

Little Arya loves to play with numbers. She likes to play in dif...

#### Secret Meeting

The world is terrified by Pandas! After a miraculous chemical ex...

#### Easy Summation

Little Arya is growing up fast and now she can count the numbers...

#### Byang and The Grid Game

Byang has invented a game he wants to play with his soulmate Bya...

#### Recursive Function

A common example of recursion goes something like this: long lo...