# Binary Search Problems

#### 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...

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...

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...

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