Burger King Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ... |

I Hate Combinatorics! Rick and Morty are being hunted by the galactic government. They ran away to the cell dimension. The... |

Counting Murgis Ever since that wicked thief took away some of her murgis (hens, that is), Meena was ever anxious th... |

Game of Tic-Tac-Toe Alice and Bob is a playing a game of tic-tac-toe, to be precise a variant of tic-tac-toe called Nota... |

Passwords Alice wants to extract some passwords from a random string. A password can have any number of charac... |

Dominoes Forever Once when I was little, my father took me to a tobacco shop! It is surprising, but true. He asked th... |

Maximum Sum Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,... |

Find NSUPS Given a string s, find the number of subsequence in s which forms the word "NSUPS". A subsequence is... |

COVID-19 Outbreak COVID-19 outbreak in Atlantis is so bad that the government is forced to lock down the whole country... |

Game of Palindromes In a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ... |

Alice in Candyland Alice came up with a new game. In this game called "Candy Quest", there is a NxN size 2D grid. In ea... |

Ekupai Hacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer... |

Train Hijack You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a... |

Is This a Give-Away? Once there lived an ancient mage named Farabi. He could always give perfect weather forecast. He nev... |

Subarray Sum You are given an array having N integers. You have to select at most K positions in the array and re... |

Snake's Neck Remember Violet and Dash from the movie "The Incredibles"? The two siblings recently installed the c... |

Unique Relief Thanos has now figured out how to visit all the houses in the flood-affected area. However, now he h... |

Video Game Shefin is playing a game. In this game there are N buildings numbered from 1 to N. Each building has... |

Messy Table Akib is a very good student but his reading table is very messy. One Friday afternoon, Akib is sitti... |

Third Dimension Mr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across... |

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

Milad's Lost Tree Milad likes trees so much. He has a rooted tree with $n$ vertices each of which has some non-negativ... |

Happiness If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ... |

A Journey Towards One Given N. You can perform 3 types of operations: Increase N by 1. Decrease N by 1. Divide N by 2, av... |

MSIS! Do you know what MSIS is? MSIS is the abbreviation for Maximum Sum Increasing Subsequence. It is a s... |

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