Mina and Raju Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina... |

Sgt. Laugh That's it. Sgt. Laugh has had enough. He is determined to end the evil military reign of General Cry... |

Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |

Penguins of Madagascar One day the penguins of Madagascar found a string S... Wait... Wait. Actually the setter of the prob... |

LIDS We all know about LIS (Longest Increasing Sub sequence). The task to find the length of the longest ... |

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

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

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

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

No GCD You are given N integers. Each integer is square free (i.e. it has no divisor which is a square numb... |

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... |

Harry Potter and the Vault of Gringotts "There was a break-in of Gringotts Wizarding Bank on 1 May, 1998, during the height of the Second Wi... |

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

OCD Returns! This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o... |

The Perfect Collection Given an array A of N integers, if we choose any K of these integers and calculate their bitwise XOR... |

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

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

Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |

Very Dirty String Strings are difficult, most of the contest programmers say this and try to avoid string algorithms. ... |

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... |

Smart Feature Phone 2 Alice worked in CIA. Right now he need to send an encrypted message to the headquarter(HQ) of CIA. ... |

Orchid Division Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row... |

Paying Bills Mued is finally home for summer vacation after surviving yet another semester of the mighty CS Under... |

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

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