Be Like Hasib

Hasib, the famous programmer, uses a little game when he teaches Binary Search to his students. He r...

I Scream, You Scream!

Meem loves ice cream cones. So much so that she created an ice cream stand to share the joy of ice c...

Answer the Queries

Given an array of N elements, indexed from 0 to N-1. Now you are given some queries in the form [L, ...

Buildings

There are n buildings in a row. The height of the i’th building is hi. You have ৳k. It is the amoun...

Most Difficult Problem Ever

You are given a function like below: long long F(int A, int B, int C, long long x) { long long...

An Obvious Interactive Problem

I pick a number. You guess it. You can guess at most 25 times. For every guess you make, I will tel...

Lucky Shirt

Marjokes is a very famous comedy personality in Byteland. He is a poet, a writer, a singer and an ac...

Complex Operations

You are given an array A of length N. You have to perform two different types of operations. In the...

Balanced Relief

Thanos just finished his relief work. We all know that Thanos loves balanced things. So he finds so...

The Multiplayer Action Game

Have you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action...

A New Tree

Bob had N isolated nodes. He decided to connect the nodes by creating new edges and make a tree. So ...

Sofdor Ali and Attack Optimization

Tuki and Jha is in the middle of an interplanetary war and their base is under drone attack! They ar...

Spot It!

Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t...

Mind Flayer Has Attacked Again!

Mind flayer, the shadow monster has attacked the town of Hawkins again. This time, the mind flayer h...

Poltu and Interesting Number

Poltu Loves interesting number. So he wants to find this type of number. The definition of an inter...

XOR Partition

Neo has a hidden array A of n integers where 0 ≤ Ai ≤ 109 is satisfied for each i from 1 to n . You...

M-Sequence

A sequence is called M-sequence if after removing zero or more elements from the sequence the GCD o...

Jenga Tower

Maybe you all are familiar with Jenga Game. “Jenga is played with 54 wooden blocks. Each block is th...

Watercolor

Bob is the owner of a shop named “Color Maker”. He has 256 types of watercolor in his shop. The type...

City of Burgerland

Have you ever heard of The Burgerland City? The city is full of burger shops. You will surely find s...

Beauty Factor

Mehedi and Burhan are two friends. Yesterday they have participated in a class of sorting. Actually ...

Straightforward

No gossip. In this problem I will just say what to do. Initially, you will be given a bracket sequen...

Dividing the Gifts

Today is a very good day in CSEmpur because Tuktuki has bought N gifts! Tuktuki wants to give these ...

The Exceptional Artist

Irtiza is an extraordinary sketch artist. His obsession with perfection drives him to make every pix...

Average the Array

You are given an array A of length N. You have to choose a subset S from given array A, such that av...