EkupaiHacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer...
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Sgt. LaughThat’s it. Sgt. Laugh has had enough. He is determined to end the evil military reign of General Cry...
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Video Game ProShefin is playing a video game. In this game, there will be N buildings in a row. i^{th} building ha...
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Unique ReliefThanos has now figured out how to visit all the houses in the flood-affected area. However, now he h...
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Array PartitionToday Leena learnt about subarrays and partitions. Given an array A, a subarray of this array is a p...
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LIDSWe all know about LIS ( Longest Increasing Sub sequence). The task to find the length of the longest...
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A Journey Towards OneGiven N. You can perform 3 types of operations: Increase N by 1. Decrease N by 1. Divide N by 2 (On...
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Easy Sequence 1Let’s define an easy sequence F. Where F(1) = 1 F(2X) = F(X)^2 + 1 F(2X+1) = F(X) \times F(X+1) + 2 ...
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Interesting Pile GameTurja and Akash are playing an interesting game. Initially a pile of N stones is given to them. Each...
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Paranoid TradingYou have been newly appointed as the accountant of Michael Corleone - the famous mafia boss. Your ta...
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The Perfect CollectionGiven an array A of N integers, if we choose any K of these integers and calculate their bitwise XOR...
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Dominoes ForeverOnce when I was little, my father took me to a tobacco shop! It is surprising, but true. He asked th...
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Convert String Into PalindromeA palindrome is a word, number, phrase, or other sequence of characters which reads the same backwar...
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MSIS!Do you know what MSIS is? MSIS is the abbreviation for Maximum Sum Increasing Subsequence. It is a s...
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Polygon Construction (Hard)Meera in going to picnic with her friends. They are going to have lots of fun. They will be doing va...
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Third DimensionMr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across...
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No GCDYou are given N integers. Each integer is square free (i.e. it has no divisor which is a square numb...
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OCD Returns!This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o...
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Easy Sequence 2Let’s define a easy sequence F. Where F(1) = 1 F(2X) = F(X)^2 + 1 F(2X+1) = F(X) \times F(X+1) + 2 H...
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The Game of RocksAlice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co...
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