## MaxXORYou are given an array AAA of n integers (A1A_1A1, A2A_2A2, ..., AnA_nAn) and some queries. In ea... |

## New Year CoupleThe new year 2017 is here. To celebrate the 31st night, Mr Rio has thrown a big party at his house. ... |

## Undo HistoryRobin is using a peculiar text editor to write a sequence of lines of text. The editor consists of t... |

## The Punishment of HasinurHasinur studies at X School & College situated in Chittagong. AA Sir is one of the toughest and ... |

## Yet Another XOR ProblemGiven a rooted tree with N nodes where each node has a value, find a pair of nodes (u, v) so that u ... |

## Another String Query ProblemThis time I'm going to introduce you to a new land, called String Land. In String Land there are N ... |

## Yet another Real Life ProblemAkash is one of the finest programmers of AUST. His closest senior Shuvro asked him if he can solve ... |

## Spam Me NotYour team has been tasked to build a section of a web app where users can choose whether and how the... |

## Fabby and Her Wedding DressYou all remember Fabby, the princess of Byteland. People of Byteland are waiting for the biggest cel... |

## Yet Another XOR Tree ProblemYou are given a tree with NNN nodes. A non-negative weight is assigned to each edge of the tree. Let... |

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