## Power and ModExponentiation is a mathematical operation, written as b n , inv... |

## Boltu vs BaltiBoltu and Balti are two friends. Boltu is a great programmer whe... |

## Circle of BoltuBoltu and Poltu are two best friends. Boltu loves to play games ... |

## Counting Is DifficultEast West University Computer Programming Club is organizing a p... |

## Circles in a RectangleTwo circles are placed inside a rectangle. They do not intersect... |

## An Arithmetic ProblemA 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 OddsSometimes, contestants tend to look for patterns in problem desc... |

## A Girl's StoryMeena (Bengali: মীনা) is a fictional character who stars in the ... |

## Arunima CityAfter the big decentralization process, where Dhaka city’s popul... |

## Compute the CombinationLet 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 ChessboardIt’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 SquareYou are given a square and there are four circles which are over... |

## GPA CalculatorShibli is a very good student. He is very regular and attentive ... |

## Magic SquareA little boy Towhid is good at mathematics. He solves a lot of m... |

## Window Seats on a BusKarim is traveling by bus. He has the window seat. However, he h... |

## Red and GreenSuppose, there is an array of N integers. Each index of the arra... |

## Birthday Gift for SJToday is your best friend SJ’s birthday. You want to buy a birth... |

## Be Like HasibHasib, the famous programmer, uses a little game when he teaches... |

## Event TimingBob is making a new application for Android phones. Front-end of... |

## PrisonersLet me tell you a story of a dangerous prison. There were N pris... |

## Sofdor Ali and the Puzzle of WeightsSofdor Ali is one of the most famous scientists of Bangladesh. H... |

## Sofdor Ali and HistogramThe Great Sofdor Ali is now interested in competitive programmin... |

## Arya and ORLittle Arya loves to play with numbers. She likes to play in dif... |

## Secret MeetingThe world is terrified by Pandas! After a miraculous chemical ex... |

## Easy SummationLittle Arya is growing up fast and now she can count the numbers... |

## Byang and The Grid GameByang has invented a game he wants to play with his soulmate Bya... |

## Recursive FunctionA common example of recursion goes something like this: long lo... |

## Playing With Your MindGiven a non-negative integers N. You have to find an integer P s... |

## Recursive World!See following the two recursive functions: C(0) = 0 C(1) = 5 C(... |