## A Dog Ate My HomeworkLeonhard’s math teacher loves prime numbers. As homework, the teacher gave Leonhard a number n, told...
Moderate
6/14/93 |

## Big LCMLet, $BLCM(a, b) = $ the smallest positive integer which is divisible by all integers in range $[a, ...
Moderate
27/105/378 |

## ClickbaitClickbait is something (such as a headline) designed to make readers want to click on a hyperlink es... |

## Fighting Over a DusterThere are two sections in Toph school and college named section A and section B. Recently the studen...
Moderate
2/5/10 |

## GoGAlice and Bob are playing GoG. GoG is a two-player board game. It consists of a grid with n rows and...
Moderate
110/112/141 |

## HashingShreas has created a new revolutionary hashing function that calculates hash values of graphs. For a... |

## Hirak Rajar DeshHirak Raja, the king of the country “Hirak Rajar Desh”, the conqueror ultimate, wanted to expand his...
Moderate
4/4/9 |

## Histogram ReorderingYou are given an array of integers H, representing the height of the bars of a histogram. The width ...
Moderate
9/28/161 |

## Infinite ShufflerHeRock made an infinite array shuffler, which he thinks nobody can hack. The machine takes an infini... |

## Interactive GCDThis is an interactive problem. Alice and bob are playing a game of Interactive GCD. The game engine...
Moderate
14/24/91 |

## Interplanetary MissionThe National Space Center(NSC) is planning an interplanetary mission in a new galaxy far far away fr... |

## LFRIn this year's RoboFest, there a segment called LFR(Line Follower Robot) contest. An LFR contest is ... |

## MEX DividendWe define MEX Dividend of an array as the smallest positive integer not present in the array which i... |

## Most Likely AndTashdid has a secret array of size n. For each index of the array, he will randomly choose an intege...
Moderate
3/10/28 |

## NilkhetYou’re planning to start a library for the next n days, where you will rent books to students. Each ... |

## Reverse HashBinary strings are strings that can only have 0 or 1 as the characters. The hash value of a string i... |

## Special KeyboardHerok, the fastest typist in the world, has a special keyboard. The keyboard only has n different ke...
Moderate
16/73/190 |

## Sum of MediansYou will be given an array of size $n$ where all elements of the array are pairwise distinct. You wi...
Moderate
2/7/13 |

## The Lucky DiceRay and Evangeline are playing a game named "The Lucky Dice". In this game, each player tosses up an... |

## Wireless SignalThe city of Byteland is rectangular in shape and can be represented as a 2D coordinate system with n...
Moderate
6/13/33 |

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