Mina and RajuEveryone know about Mina & Raju. They are siblings as well as good friend. The friendcircle of ...

PasswordsAlice wants to extract some passwords from a random string. A password can have any number of charac...

Game of PalindromesIn a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ...

Hardest Problem EverProf.Dr.DP is very famous professor. He is expert (actually legendary grandmaster) in Dynamic Progra...

Unique ReliefThanos has now figured out how to visit all the houses in the floodaffected area. However, now he h...

BuildingsThere are n buildings in a row. The height of the i'th building is hi. You have ৳k. It is the am...

Rainy DayYou have to complete N tasks tomorrow, where each task can last for any number of minutes. Each task...

Assigning WorkstationsPenelope is part of the admin team of the newly built supercomputer. Her job is to assign workstati...

Convert String Into PalindromeA palindrome is a word, number, phrase, or other sequence of characters which reads the same backwar...

Déjà VuThor, the Thunder God is fighting a horde of monsters in a cave. The cave is so narrow that it can b...

Interesting Pile GameTurja and Akash are playing an interesting game. Initially a pile of N stones is given to them. Each...

EkupaiHacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer...

Paranoid TradingYou have been newly appointed as the accountant of Michael Corleone  the famous mafia boss. Your ta...

Fantastic FoodAs we all know that Alice and Bob just landed in Fantastic World and are going to stay for the next ...

Demonic SubsetLets not waste your time with long tiring problem statement and just go straight to the point. You a... 
Train HijackYou and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a...

NeZuKo Chaaaaaaaaaaaaan!Tanjiro and his sister Nezuko live in a village that is shaped like a circle with a radius R. There&...

String Is Not That EasyLet's consider a string S which is obtained by concatenating the nonnegative integers from 0 to...

Super Mario BrosEvery kid loves to play Super Mario Bros. Mario moveু forward and collects coins in a stage. Stages ...

Permutations and DivisorsLet P be a permutation of length n where each value from 1 to n occurs exactly once. A subsequence o...
