Divide and Conquer Problems
Road Minister Techboy Techboy is appointed as the minister of roads and highway in his country Better-Not-Name-It. Now he ... |
LCM Divisible Subsequence You’ll be given an array of $N$ integers and two more integers $K$ and $M$. You have to find the num... |
Reverse Hash Binary strings are strings that can only have 0 or 1 as the characters. The hash value of a string i... |
Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |
The Game of Rocks Alice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co... |
Babur Biye Babu is getting married. Babu's fiancé is a prominent programmer of Bangladesh. She told Babu to sol... |
Assigning Workstations Penelope is part of the admin team of the newly built supercomputer. Her job is to assign work-stati... |
Gaaner Koli The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi... |
Orchid Division Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row... |
Aliens 19 February 2020, Unidentified flying object (UFO) has captured student’s attention on top of the CS... |
Divisible LCM You have a sequence a1, a2, a3, …, an of n integers and q queries. In each query, you are given ... |
Flow on Tree Mr. Kaboom has recently learned about maximum flow. Now his friend Mr. Taboom gave him this problem.... |
Efficient Construction on Mars Elon Musk has constructed N cities numbered from 0 to N−1 on Mars. He initially planned to construct... |
Interesting Pile Game Turja and Akash are playing an interesting game. Initially a pile of N stones is given to them. Each... |
Jontrona of Liakot Liakot, the king of Cox's Bazar, is currently in a dire situation. His own younger sister Ayesha is ... |
Move It! Few of my friends are working on a game called “Move It!”. It's a tile-based game played on an $n\ti... |
Train Hijack You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a... |
Random Graphs This problem is very easy. There's a graph of $N$ nodes. Each edge $u-v$ ($u >= v ; u = v$ is possib... |
Bikpik Colony Bikpiks are very small aliens. Day by day they are becoming very dangerous for human being. They liv... |
Birthday Present?! As everyone gifts graphs or strings to people on their birthdays, Oyshee’s friends decided to do som... |
Complex Tashreef Tashreef finally received the Zuinness Journal of Galactic records recognition for being the most co... |
Game of Destruction You are playing the deadly game Game of Destruction. You will be given a list of integers. In each s... |
Quarantiko "If you feel unwell, stay home." Riaz has created a special encryption algorithm named Quarantiko to... |
Shrink the Array You have an array of size N which contains positive integers. You can apply the following operation ... |
Inversions and Goodbye It's time to say goodbye to CSEmpur, at least for today. And so you wanted to give the citizens of C... |
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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
