Problems by Hasinur_

Archers and the Monster

A monster is trapped in a triangle in a 2D coordinate system. Three archers are waiting to kill him....

Moderate 28/32/52

Code at the Time of Pandemic

The whole world is going through a hard time. Every day thousands of people are dying and many are g...

Moderate 277/291/506

Easy Math

You will be given three integers a, b, m. Print ( ab ) mod m. There will be 30 test cases at most in...

Easy Parenthesis

Let there be a parenthesis sequence string S. This sequence is not guaranteed to be balanced. Your t...

Moderate 14/28/85

EP-Palindromes

You will be given an array of integers $A$. You have to count the number of $\textbf{subarrays}$ (a ...

Moderate 34/54/266

Fabby and Her Wedding Dress

You all remember Fabby, the princess of Byteland. People of Byteland are waiting for the biggest cel...

Moderate 11/18/257

Fabbyfied Triangle

Fabby is the princess of byteland. She is a genius and loves to play with triangles. One day, while ...

Moderate 34/48/90

Heights of the Trees

There are many long trees in a forest. You will be given some relevant information about the trees a...

Moderate 36/50/200

K-Th Root

You will be given Q queries. In each query, you will be given two positive integers A and B. You hav...

List of Strings

Initially you have an empty list D. In this problem you will be asked to execute three types of quer...

Moderate 12/29/93

Meeting Table

Let there be three groups of people waiting to attend a meeting. There are $\textbf N$ people in eac...

Moderate 43/61/221

Modulo

Let's get straight into the problem. In ths problem, here will be multiple test cases. In each test ...

Moderate 83/124/533

No More Child Labor

Child labor is a global crisis. As you are a problem solver, you need to be aware that many children...

Moderate 23/63/274

No Onion, No Cry

-Onions make us cry, don't they? They can make us happy too. -How? -Read the statement carefully! I...

Moderate 1/3/17

Penguins of Madagaskar

You all heard about the Penguins of Madagaskar. They work for the penguin kind and loves cuteness. O...

Perhaps Strings Are Inevitable

Strings are inevitable in life. They give meaning to our expressions. Strings come in life in many w...

Moderate 3/4/30

Rectangle or Not

Let’s imagine a quadrant lies on a 2D coordinate system’s first quadrant. you will be given the coor...

Moderate 71/109/259

Save the Forest

Last year, our largest rainforest Amazon suffered the worst wildfire of the decade. The wildfire cau...

Moderate 5/8/22

Solve This Giveaway Problem First

This problem is straightforward and easy. You will be given two integers N, P and a list L of positi...

Moderate 11/18/60

Subtree MEX

You will be given a balanced binary tree of N nodes. Each of the nodes of the tree will contain a no...

Moderate 9/15/107

Tom Is a Good Mentor

Today is the first day of the little mouse Jerry at school. Famous mathematician Tom is his teacher....

Moderate 19/49/139

Walk on the Grid

There is a grid of size $R\times C$ where $R =$ Number of rows and $C =$ Number of columns. You sh...

Moderate 6/17/103

Welcome to Criterion Rounds

The team congratulates you for participating in this contest and for being part of the journey towar...

Moderate 81/114/406
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