A. Compressed StringYou are given a string SSS consisting of lowercase latin letters 'aaa' & 'bbb' only. Your task i...

B. LCMGiven an integer LLL, you have to find the product of two different integers such that their LCM (Le...

C. In QueueThere are NNN students in a queue with ID 1,2,3,...,N1, 2, 3, ..., N1,2,3,...,N respectively. Each s...

D. Robi Kaka's CubeOur beloved Robi Kaka has invented a cube. You have to solve only one side of this cube – a square o...

E. Jealous NobitaShizuka and Dekisugi are playing with a binary tree rooted at 111. In each turn, the player chooses ...

F. Quarantined With CirclesYou are given radius RRR of a circle. Let’s call it “Main Circle”. You have to draw NNN circles outs...

G. Sheikh Kamal IT Business IncubatorThe country's first university based Incubator (Sheikh Kamal IT Business Incubator) is going to be e...

H. 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...

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