LIDSWe all know about LIS ( Longest Increasing Sub sequence). The task to find the length of the longest...
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Make It Big!You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c...
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LCM Divisible SubsequenceYou’ll be given an array of N integers and two more integers K and M. You have to find the number of...
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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 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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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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Gaaner KoliThe protagonists of this problem are two great programmers of a certain institution Omanush and Ordi...
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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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Sticking PinsYou are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ...
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Smart Feature Phone 2Alice worked in CIA. Right now he need to send an encrypted message to the headquarter(HQ) of CIA. ...
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Perseus and The New ChallengeThe life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
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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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Pathetic Interview IIYou all know about the story of Pathetic Interview-I. Today, I am sharing a story of my close friend...
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Burger KingEvery day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ...
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Harry Potter and the Vault of Gringotts"There was a break-in of Gringotts Wizarding Bank on 1 May, 1998, during the height of the Secon...
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Alice in CandylandAlice came up with a new game. In this game called "Candy Quest", there is a NxN size 2D gri...
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