Math Problems
The Matrix In the metaphysical world of the Matrix, different people make their chessboards with their own spec... |
Diagonal Traversal You are given an n×m grid. You can go from point (x1,y1) to any point (x2,y2) of grid if and onl... |
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... |
Walk on the Grid There is a grid of size $R\times C$ where $R = $ Number of rows and $C = $ Number of columns. You sh... |
Perfect Points Perfect lines are the lines y=mx+c such that m and c are positive integers. Perfect points are the p... |
Distribution of Relief "Please follow all instructions provided by your local health authorities." Due to Coronovirus epide... |
Is Bita Happy? Bita has learned bitwise-operations recently. She is doing some experiments with these operations no... |
An Act of Uniformly Random Kindness After selling all the bitcoins that you bought back in 2010, you now find yourself with a huge amoun... |
Oishi Teacher and Her Naughty Class Oishi teacher has returned to her class after the tiffin break. She noticed that some students who r... |
Vox Populi Asfia's daughter just turned 5. She is looking for a school to get her admitted. Like every other pa... |
Bad Cook Mr. Meme has recently moved to a foreign country named "Gloryland" for study purpose. There, he has ... |
Solve This Giveaway Problem First This problem is straightforward and easy. You will be given two integers N, P and a list L of positi... |
Cook a Dish Have you ever cooked something? No? Not a problem! Whenever you try to cook something, you need some... |
United State of Koanhali Koanhali is a strange country. The govt. of Koanhali maintain the marriages of this country. If you ... |
Justify the Invention ! You probably heard of Professor Meiokoyi, a talented scientist. Recently she invented a new solution... |
Permutations and Divisors Let P be a permutation of length n where each value from 1 to n occurs exactly once. A subsequence o... |
M-Sequence A sequence is called M-sequence if after removing zero or more elements from the sequence the GCD of... |
Morona Virus Arrived "Cover your nose and mouth with a bent elbow or tissue when you sneeze or cough." World has defeated... |
Day-Month-Year Meena is a talented girl in her class. She likes to brainstorm in her leisure times. One day, she wa... |
LCM Given an integer $L$, you have to find the product of two different integers such that their LCM (Le... |
Perplexity of Permutations A permutation of N integers from 1 to N is an array where each number has appeared exactly once in t... |
Khataraina is Back! Last year we helped Adnan with his girlfriend Khataraina’s issue. This year she caused another troub... |
First Snow One day Tomato woke up late in the morning and realized that she had a long list of todos. Frantical... |
Mina and Raju Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina... |
Opera & B2G1 “Don’t practice until you get it right. Practice until you can’t get it wrong” Bangladesh is the ho... |
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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
