Problems

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

• By Rajan_sust
• Moderate
• 53/134 Solutions
• 709 Submissions

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

• By avivilla
• Moderate
• 129/147 Solutions
• 344 Submissions

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

• By shourov.sust
• Moderate
• 1/1 Solution
• 2 Submissions

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

• By humayan7711
• Moderate
• 3/18 Solutions
• 48 Submissions

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

• By humayan7711
• Moderate
• 15/72 Solutions
• 231 Submissions

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

• By ovis96
• Moderate
• 3/28 Solutions
• 73 Submissions

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

• By msabeer
• Moderate
• 3/4 Solutions
• 17 Submissions

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

• By curly_braces

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

• By Arcturus
• Moderate
• 7/13 Solutions
• 22 Submissions

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

• By Hasinur_
• Moderate
• 24/43 Solutions
• 203 Submissions

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

• By shajia
• Moderate
• 85/95 Solutions
• 226 Submissions

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

• By pranonraian
• Moderate
• 96/156 Solutions
• 448 Submissions

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

• By flash_7
• DP, InclusionExclusion, NTT
• Moderate
• 1/1 Solution
• 1 Submission

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

• By user.424868
• Adhoc, Combinatorics
• Moderate
• 2/3 Solutions
• 3 Submissions

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

• By fsshakkhor
• Combinatorics, NumberTheory, Probability
• Moderate
• 1/1 Solution
• 1 Submission

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

• By masrur
• Adhoc, Math
• Moderate
• 1/3 Solution
• 3 Submissions

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

• By imAnik
• DP, Game, SpragueGrundyTheorem
• Moderate
• 1/3 Solution
• 3 Submissions

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

• By robin_aust
• Moderate
• 32/58 Solutions
• 128 Submissions

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

• By Raihanur_R
• Moderate
• 308/342 Solutions
• 798 Submissions

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

• By subhashis_cse
• Moderate
• 112/150 Solutions
• 413 Submissions