A.
Hexagonal Packing Bees are very hard working insects and they are also very good at geometry. In order to minimize the... |

B.
The Game of Rocks Alice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co... |

C.
Rectangle Division You are given a rectangle which is parallel to the coordinate axis. The lower left coordinate is (x,... |

D.
Chemical Reaction II The simulation of chemical reactions are always complex. Professor X has devoted himself to studying... |

E.
The Multiplayer Action Game Have you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action ... |

F.
Gaaner Koli The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi... |

G.
Gretchen and Strange Function Gretchen loves experimenting with functions. She came up with an interesting function recently that ... |

H.
Infinite Game One day Oditi and her two brothers Sam and Ron were feeling bored as their summer vacation was almos... |

I.
Flyover in Twinland Rio has become the president of Twinland. Now he wants to develop his country to fulfill his promise... |

J.
Ghosh vs Datta About two hundred years ago, a serious dispute evoked between the two neighboring colonies of Khulna... |

K.
Primary Key "Clarity-Lon" is the new awesome e-commerce based startup that went to the top of the chart within f... |

L.
Rio and Inversion One day Rio was returning home from his university and unfortunately lost his phone on the way. He a... |

Practice contests allow you to re-run contests and experience them as close as possible to the original run.

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