Memes vs. Social Media

In this era of modern technology social media is the most powerf...

Poltu and Interesting Number

Poltu Loves interesting number. So he wants to find this type of...

Hardest Problem Ever

Prof.Dr.DP is very famous professor. He is expert (actually lege...

Burger King

Every day, more than 11 million guests visit BURGER KING® restau...

Diagonal Sum

Given an N*N size matrix, you have to re-arrange the elements of...

Game of Strings

Redoan is very fond of strings. He wants to go on a spree of sol...

Passwords

Alice wants to extract some passwords from a random string. A pa...

Convert String Into Palindrome

A palindrome is a word, number, phrase, or other sequence of cha...

Buildings

There are n buildings in a row. The height of the i’th building ...

Messy Table

Akib is a very good student but his reading table is very messy....

Snake's Neck

Remember Violet and Dash from the movie “The Incredibles”? The t...

Road Minister Techboy

Techboy is appointed as the minister of roads and highway in his...

My Small Number

You are given two integers N and M. Find another integer X divis...

Very Dirty String

Strings are difficult, most of the contest programmers say this ...

Déjà Vu

Thor, the Thunder God is fighting a horde of monsters in a ca...

Flow on Tree

Mr. Kaboom has recently learned about maximum flow. Now his frie...

Polygon Construction (Hard)

Meera in going to picnic with her friends. They are going to hav...

Third Dimension

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

No GCD

You are given N integers. Each integer is square free (i.e. it h...

OCD Returns!

This problem author has OCD (obsessive–compulsive disorder). One...

Easy Sequence 1

Let’s define an easy sequence F. Where $ F(1) = 1 $ $ F(2X) = ...

Easy Sequence 2

Let’s define a easy sequence F. Where $ F(1) = 1 $ $ F(2X) = F...

The Game of Rocks

Alice and Bob have come up with a new game. Bob gives Alice a N...

Gaaner Koli

The protagonists of this problem are two great programmers of a ...

Flyover in Twinland

Rio has become the president of Twinland. Now he wants to develo...

The Perfect Collection

Given an array A of N integers, if we choose any K of these inte...

Darth Vader and 3PO on a Tree!

Did you watch Star Wars yet? No? You should in your free time. ...

Sticking Pins

You are sticking pins on a 2D board at N given coordinates. Howe...

Smart Feature Phone 2

Alice worked in CIA. Right now he need to send an encrypted me...

Perseus and The New Challenge

The life of princess Andromeda, the daughter of King Cepheus and...

Dominoes Forever

Once when I was little, my father took me to a tobacco shop! It ...

Pathetic Interview II

You all know about the story of Pathetic Interview-I. Today, I a...

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