## How Cow!There is a cow in a village. She eats as much grass as she wants... |

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

## XOR MasterImam has been participating in online programming contests for y... |

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

## Another Update-Query ProblemYou will be given an array A of length N and you will have to pe... |

## Around the SquareYou are given a square and there are four circles which are over... |

## Count the OddsSometimes, contestants tend to look for patterns in problem desc... |

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

## An Arithmetic ProblemA sequence is an arithmetic sequence if every two successive num... |

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

## BloodlustMr. X is a dangerous criminal. He likes to draw some geometric r... |

## Convex Hull GeneratorYou have to generate a convex polygon which has N points each ... |

## Meena And Her DreamWe are now in meena’s dream. But she can’t see us, we are invisi... |

## Trivial SummationThe problem statement is so small. Give you four integers r, a, ... |

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

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

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

## Counting is Difficult 2East West University Computer Programming Club (EWUCoPC) is arra... |

## Geometry ForeverFear no more, this is a problem of geometry! When Moyna was lit... |

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

## Old Magic!You: Guess an integer number, but don’t tell me. Your friend: Ok... |

## Koch SnowflakesThe Koch snowflake can be constructed by starting with an equila... |

## Arithmetic Sequence (Easy)Arithmetic Sequence is a sequence of numbers where the differenc... |

## Easy Peasy Subset SumLittle Oishee loves to watch TV. But her mother, who is a math t... |

## Find the CEOsYou will find millions of CEOs in this country. Some have a one ... |

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

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

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

## 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... |

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

## Compute the CombinationLet P = C(N,0) - C(N,1) + C(N,2) - C(N,3) + … + C(N,N); where C(... |