Ne-Zu-Ko Chaaaaaaaaaaaaan! Tanjiro and his sister Nezuko live in a village that is shaped like a circle with a radius R. There'... |
Very Dirty String Strings are difficult, most of the contest programmers say this and try to avoid string algorithms. ... |
Lucky Stone Game Alice and Bob are playing a stone game. They consider 4 and 7 as lucky numbers and they like to make... |
Cent Savings To host a regional contest like NWERC a lot of preparation is necessary: organizing rooms and comput... |
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)×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... |
Master Plan Gakra Miah is a Wollywood movie lover. He watches movies almost everyday. He has watched so many mov... |
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... |
Game of Palindromes In a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ... |
Gaaner Koli The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi... |
Subarray Sum You are given an array having N integers. You have to select at most K positions in the array and re... |
Interesting Pile Game Turja and Akash are playing an interesting game. Initially a pile of N stones is given to them. Each... |
OCD Returns! This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o... |
Demonic Subset Lets not waste your time with long tiring problem statement and just go straight to the point. You a... |
Maximum Sum Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,... |
Super Mario Bros Every kid loves to play Super Mario Bros. Mario moveু forward and collects coins in a stage. Stages ... |
Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |
Penguins of Madagaskar You all heard about the Penguins of Madagaskar. They work for the penguin kind and loves cuteness. O... |
Perseus and The New Challenge The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan... |
Happiness If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ... |
Sofia Sofia has just arrived in Bangladesh. Rather asking it some dumb questions, lets give it a maze prob... |
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... |