## The Perfect CollectionGiven an array A of N integers, if we choose any K of these inte... |

## Easy Sequence 1Let’s define an easy sequence F. Where $ F(1) = 1 $ $ F(2X) = ... |

## No GCDYou are given N integers. Each integer is square free (i.e. it h... |

## Subarray SumYou are given an array having N integers. You have to select at ... |

## Dominoes ForeverOnce when I was little, my father took me to a tobacco shop! It ... |

## Pathetic Interview IIYou all know about the story of Pathetic Interview-I. Today, I a... |

## Maximum SumLittle Jimmy loves to play with numbers. One day he was playing ... |

## Gaaner KoliThe protagonists of this problem are two great programmers of a ... |

## Burger KingEvery day, more than 11 million guests visit BURGER KING® restau... |

## Polygon Construction (Hard)Meera in going to picnic with her friends. They are going to hav... |

## Third DimensionMr. J wants to learn about combinatorics. He started reading a b... |

## OCD Returns!This problem author has OCD (obsessive–compulsive disorder). One... |

## Easy Sequence 2Let’s define a easy sequence F. Where $ F(1) = 1 $ $ F(2X) = F... |

## The Game of RocksAlice and Bob have come up with a new game. Bob gives Alice a N... |

## Sticking PinsYou are sticking pins on a 2D board at N given coordinates. Howe... |

## Smart Feature Phone 2Alice worked in CIA. Right now he need to send an encrypted me... |

## Perseus and The New ChallengeThe life of princess Andromeda, the daughter of King Cepheus and... |

## Harry Potter and the Vault of Gringotts“There was a break-in of Gringotts Wizarding Bank on 1 May, 1998... |

## Alice in CandylandAlice came up with a new game. In this game called “Candy Quest”... |

## LIDSWe all know about LIS ( Longest Increasing Sub sequence). The ta... |

## Very Dirty StringStrings are difficult, most of the contest programmers say this ... |

## Orchid DivisionQuido has a square orchard full of various fruit and nut trees. ... |

## Counting MurgisEver since that wicked thief took away some of her murgis (hens,... |