Robinson Crusoe

Robinson wants to be a mariner. But his father wants him to be a lawyer. But, if Robinson can solve ...

Mr. Scorer

It’s time for ICPC (International Council for Professional Cricketers) World Finals 2020. The KITKOT...

Expected Light

Bob has a circular land of radius R. He has built a circular building of radius r (r < R) at the ...

Missing Order

It’s IIKI’s birthday today. He got a function called INSERTER as a gift from OIIKI, one of his mathe...

Optimal Walk

IIKI is in great trouble. In the game called BIIKI, The Hero CIIKI gets power M for per kilometer di...

Reduce Articulation Point

Given a tree. Tree is an undirected connected acyclic graph. Wiki You should add exactly one edge t...

Back to Back

You will be given an array A of size N and Q queries. The queries will be given in the following for...

Infinite Shuffler

HeRock made an infinite array shuffler, which he thinks nobody can hack. The machine takes an infini...

Merry-Go-Round

The Merry-Go-Round is an amusement ride, popular in rural Bangladesh. Today is your birthday, and to...

EP-Palindromes

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

Taofiq the House Prefect

Tomorrow is a very special day for Taofiq. He is participating in an intra school quiz contest. As h...

Assignment Assignment Assignment

After the season of online classes, now it’s time for evaluation. A teacher wants to evaluate the st...

LCM Divisible Subsequence

You’ll be given an array of N integers and two more integers K and M. You have to find the number of...

Chance of Passing the Quiz

Rocky is starting his online quizzes and he has been provided with some passing criteria. The rule o...

Game Show

Alex is participating in a game show. Mr. Phil is the host of the game. Alex is provided with an arr...

Who Gets the Money!?

Who doesn’t get happy after getting money in the pockets of clothes before washing them? During this...

Fivefold Removals

Alice and Bob are playing a simple game on marbles. They have a bucket containing N marbles, and the...

Easy Queries

This task is very simple. You are given a binary string (i.e. a string consisting of digits ‘0’ and ...

The Wonder Equation 2

Today we will tell you the story of a Prince, Charles, Prince of the Herroku island. He was trained ...

ICPC World Final

ICPC (International Collegiate Programming Contest) World final is one of the most prestigious conte...