# FenwickTree Problems

#### Another Query on String

You are given a string S (of length n) consisting of alphabets only. You need to perform m queries o...

#### Tree Queries

You are given a tree of n vertices. Each vertex contains an integer. Vertex 1 is the root of the tre...

#### Rivalry Friends

Ryo and his girlfriend love to think about challenges. One day his girlfriend gave him a challenge t...

#### Easy Prime!

There are N numbers in an array. You will have Q queries. In each query, you can make 2 operations. ...

#### Count the Chaos

Imagine, you have an array of integers of size NNN. At each index of this array is a unique integer ...

#### Crayons

Five friends A, B, C, D and E has come to a shop to buy crayons for their art project. They need cra...

Moderate 36/55/205

#### Ajob Commute II

Once again we return to Ajobshohor, the capital city and the heart of Ajobdesh. Ajobshohor’s road sy...

#### MSIS!

Do you know what MSIS is? MSIS is the abbreviation for Maximum Sum Increasing Subsequence. It is a s...

Moderate 50/84/212

#### Straightforward

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

#### Bored??

&quot;Avoid touching your face, particularly your eyes, nose or mouth to prevent the virus from ente...

#### Going Round in Circles

You are given an array of non-negative integers of length nnn. You have to perform two types of oper...

Moderate 14/15/58

#### A Super Easy Problem - "Array Query"

Let's get into the problem directly without much description this time :D . You are given an array A...

#### GCD and Sum

Congratulations! You’ve been hired in “Buggy Softwares Ltd.” And you’ve been already given your firs...