A Giveaway Mr. Tom is the head of ICPC world final organizing committee. For the world final, he comes to Dhaka... |

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... |

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

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

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

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

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... |

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... |

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

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)×F(X+1)+2 Here X is a posit... |

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

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

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... |

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

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

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

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

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(... |

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

Pathetic Interview II You all know about the story of Pathetic Interview-I. Today, I am sharing a story of my close friend... |

Perseus and The New Challenge The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan... |

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