COVID-19 OutbreakCOVID-19 outbreak in Atlantis is so bad that the government is forced to lock down the whole country...
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Without Any LegendYou have two arrays A1,A2,...,ANA_1, A_2, ..., A_NA1,A2,...,AN and C1,C2,...,CNC_1, C_2, ..., C_N...
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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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Lexicographical Smallest StringThere is a string sss of length nnn containing lowercase letters and an integer kkk. Among the lette...
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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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Hardest Problem EverProf.Dr.DP is very famous professor. He is expert (actually legendary grandmaster) in Dynamic Progra...
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LCM Divisible SubsequenceYou’ll be given an array of NNN integers and two more integers KKK and MMM. You have to find the num...
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String Is Not That EasyLet's consider a string S which is obtained by concatenating the non-negative integers from 0 to 102...
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Another Update-Query ProblemYou will be given an array A of length N and you will have to perform Q operations on that array. Th...
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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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Flow on TreeMr. Kaboom has recently learned about maximum flow. Now his friend Mr. Taboom gave him this problem....
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I Am Good 2.0I am trying to become a good guy, giving contestants as little pain as possible. So, this problem is...
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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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PasswordsAlice wants to extract some passwords from a random string. A password can have any number of charac...
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Hizitizi's Array CuttingHizitizi is a new character in our story. In every episode, he gets a task to do from his imaginary ...
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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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Flyover in TwinlandRio has become the president of Twinland. Now he wants to develop his country to fulfill his promise...
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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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Darth Vader and 3PO on a Tree!Did you watch Star Wars yet? No? You should in your free time. Now back to Darth Vader and 3PO. Dart... |
Easy Sequence 1Let’s define an easy sequence F. Where F(1)=1 F(1) = 1 F(1)=1 F(2X)=F(X)2+1 F(2X) = F(X)^2 + 1 F(2X)...
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Diagonal SumGiven an N*N size matrix, you have to re-arrange the elements of the matrix in such a way that the d...
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Easy Sequence 2Let’s define a easy sequence F. Where F(1)=1 F(1) = 1 F(1)=1 F(2X)=F(X)2+1 F(2X) = F(X)^2 + 1 F(2X)=...
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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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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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Road Minister TechboyTechboy is appointed as the minister of roads and highway in his country Better-Not-Name-It. Now he ...
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2Sat, Adhoc, ApolloneasTheorem, Backtracking, BFS, Bignum, BinarySearch, BipartiteMatching, Bitmask, BruteForce, ChineseRemainderTheorem, Combinatorics, ConvexHull, CutVertex, DataStructure, DFS, DigitDP, DisjointSets, DivideAndConquer, DP, Eertree, EulerTour, ExpectedValue, FenwickTree, FFT, Flow, Game, GCD, Geometry, Graph, Greedy, Hashing, HeavyLightDecomposition, Implementation, InclusionExclusion, Interactive, KnuthMorrisPratt, LowestCommonAncestor, Math, Matrix, MatrixExponentiation, MergeSortTree, ModularExponentiation, MOSAlgorithm, MST, NTT, NumberTheory, Parsing, PersistentLiChaoTree, PersistentSegmentTree, PollardRho, PriorityQueue, Probability, Queue, RabinMiller, RangeOrderStatistics, Scheduling, SegmentTree, ShortestPath, Simulation, Sorting, SparseTable, SpragueGrundyTheorem, SqrtDecomposition, Stack, String, StronglyConnectedComponents, SuffixStructure, TernarySearch, Tree, Trie, TwoPointer, WaveletTree
