Math Problems
K-th DuoPalindrome Alice likes playing with Palindromes (strings that read the same backward as forward, such as 'madam... |
Bad Boy Ekhlas Ekhlas is a bad boy, not the type of bad that you generally admire. When he was little, his primary ... |
Easy Peasy Subset Sum Little Oishee loves to watch TV. But her mother, who is a math teacher, doesn't like this at all. Sh... |
Scary Big Chessboard Our friend Alice got stuck in a big chessboard. The chessboard has N rows and N columns. Some cells ... |
Little T2 and Dead Cats The planet earth has become peaceful again because all the cats are dead. An evil robot named Xorged... |
The Titan The Titan, a giant ship started its journey on the dark sea. It was going to the North America. On t... |
This Is Too Hard ☹ Many many years ago there was a small country. And all the people there were very weird. They liked ... |
Magic Square A little boy Towhid is good at mathematics. He solves a lot of mathematical equation regularly. He i... |
Mag the Mighty Kaidul The winter is about to come. Mag the Mighty Kaidul is waiting for it for days. It is his favorite se... |
Khataraina is Back! Last year we helped Adnan with his girlfriend Khataraina’s issue. This year she caused another troub... |
Prisoners Let me tell you a story of a dangerous prison. There were N prisoners in that prison. It is guarante... |
Red and Green Suppose, there is an array of N integers. Each index of the array is either red or green. The first ... |
Table Tennis One day you have invited Sohel bhai to come to East West University to see an intra-University table... |
Boltu vs Balti Boltu and Balti are two friends. Boltu is a great programmer whereas Balti is a newbie programmer. B... |
Divide Candy Again There are N boxes with candies numbered from 1 to N. The number of candies in the boxes numbered 1 t... |
How Many Ways? Regular problem solvers starts their journey by solving ad hoc and number theory. After getting the ... |
Walking Down The Road There is an M meter long road with the leftmost point of the road being the 0 meter point and the ri... |
A Girl's Story Meena (Bengali: মীনা) is a fictional character who stars in the South Asian children's television sh... |
Birthday Gift for SJ Today is your best friend SJ’s birthday. You want to buy a birthday present for her. You want to buy... |
Circle and Square Meena and Raju are learning about different shapes. Meena's favourite shape is Circle while Raju lik... |
Sofdor Ali and the Puzzle of Weights Sofdor Ali is one of the most famous scientists of Bangladesh. He is also well known for his puzzle ... |
Meena Meets The Marauders December 14, 1975 Hogwarts School of Witchcraft and Wizardry It’s been a long long day. The Marauder... |
Equation Equals Hazards You are given the equation, GCD(A,M)=1. You have to determine whether there exists at least one inte... |
Window Seats on a Bus Karim is traveling by bus. He has the window seat. However, he has to share the window with the pass... |
Fast Co-Prime Two numbers A and B are called co-prime if the only common positive factor of the two numbers is 1. ... |
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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
