Geometry Forever

Fear no more, this is a problem of geometry! When Moyna was lit...

Compute the Combination

Let P = C(N,0) - C(N,1) + C(N,2) - C(N,3) + … + C(N,N); where C(...

Irregular Is Tough, Regular Is Easy!

Dr. Bari is working on some chemical formation. He believes that...

Harry Potter and the Vault of Gringotts

“There was a break-in of Gringotts Wizarding Bank on 1 May, 1998...

Third Dimension

Mr. J wants to learn about combinatorics. He started reading a b...

String Play

Milo has a string S of length L. Tutu picks a random prefix and ...

Sofdor Ali's Restaurant

One of Sofdor Ali’s greatest accomplishment was his Biriyani res...

Sofdor Ali and Radioactivity

Sofdor Ali is the craziest and clumsiest scientist in Bangladesh...

Magician's Offer!

Rosi Vidmun is a greedy landlord who likes to grab as much land ...

Obligatory IDPC Problem

There are n people busy with arranging the upcoming Inter Depart...

Mr. Ant and His Problem

Mr. Ant has 3 boxes and the infinite number of marbles. Now he w...

Bad Neighbors

In the strange neighborhood of Nocu, a lot of people lives prett...

Meera and Solo Chocolates

Meera bought candies from the store. She is now going to distrib...

How Many Paths?

You are at the top left corner[position (1,1)] of a **R X C ** g...

Bad Neighbors 2

As some of you already know, Nocu City has a history of having b...

Subset of Sequences

You will be given a set of sequences. Each sequence is a list of...

Secret Meeting

The world is terrified by Pandas! After a miraculous chemical ex...

Counting is Difficult 2

East West University Computer Programming Club (EWUCoPC) is arra...

Trivial Summation

The problem statement is so small. Give you four integers r, a, ...

The Game Is Back On

Moriarty is bored again. When he gets bored, the only thing he w...

XOR Master

Imam has been participating in online programming contests for y...

K-th DuoPalindrome

Alice likes playing with Palindromes (strings that read the same...

Easy Peasy Subset Sum

Little Oishee loves to watch TV. But her mother, who is a math t...

Little T2 and Dead Cats

The planet earth has become peaceful again because all the cats ...

This is Too Hard ☹

Many many years ago there was a small country . And all the peop...

Mag the Mighty Kaidul

The winter is about to come. Mag the Mighty Kaidul is waiting fo...

Counting Murgis

Ever since that wicked thief took away some of her murgis (hens,...

Game of Palindromes

In a popular computer game, Game of Palindromes also known as GO...

String in a Grid 2

Prof. Bari loves to play with string. He is also very skilled in...

Bad Cook

Mr. Meme has recently moved to a foreign country named “Glorylan...

Hange and Her Gear

Hange has developed a special gear to attack the Cart Titan. The...

String Factory

Welcome to the string factory where strings are generated in a p...

Related Categories