Problems
Strange Patterns Given R, C and D, you will produce a pattern consisting of asterisks (*) and dots (.). The pattern i... 
Moderate
38/48/67 |
Where is the Ghost The ghost exploration team find some 1D coordinate where the cursed object is located. You will be g... |
A Lazy Statement Milk has created an account in the newly launched social network Coffeebook. However, she cannot dec... |
Nitu and Her Lucky String Recently, Nitu has developed a keen interest in solving string-related problems. She possesses a spe... |
Profitable Home Milk and Mocha want to move to a new house in Coffeeland. They don’t like ugly corners sticking into... |
Queries, Queries Everywhere You are given an array a of length n. You are also given q queries on the array and you have to proc... |
Safwan's Book Bonanza A grand book fair is taking place in your city, showcasing a dazzling array of books and publication... |
Nitu and Pseudo-code Last night, Nitu came across the following pseudo-code. She understood that this method would take t... |
Alice and Bob's Laziness Father works for rail stations and his job is to supply and monitor equipment at the stations. The r... |
Crash Course Sawda and Alayna have received a remote-controlled toy robot as a gift from their beloved uncle, Mri... |
Just Another String Problem A string is called good if the number of occurrence of every character in it is even. For example, “... |
Schrödinger's Brightness Antman is in the quantum realm. He has n orbits which are concentric and circular. These are called ... |
Festival of Sticks In the vibrant village of Stickeville, an annual tradition known as the Festival of Sticks is celebr... |
Suffix Cutting You are given an array a consisting of n integers a1,a2,....,an. The array is called beautiful if... |
Cracking the Code A group of cp enthusiastic students from University of Dhaka were on a fun journey. They brought alo... |
Farewell Alice has found an array A containing n non-negative integers, where the i-th element is named Ai. ... |
Invertible Construction You are given two integers n and k. We define an operation on a r×c binary matrix as follows: Choos... |
The Great Sherlock Holmes We all know how great of a detective Sherlock Holmes is. However, suddenly he's stuck in a rather od... |
Easy Path After performing so badly in the World Cup, Mushfiq left cricket and started problem solving. You to... |
Rotate the World Cup As a Bangladeshi cricket fan, this World Cup was not a good memory for us. The only positive aspect ... |
The Cipher In an ancient civilization, shrouded in the mists of time, there existed a group of mathematicians k... |
Anina’s Birthday Gift Anina is a girl who is very much interested in mathematics. She likes to solve Geometry and Counting... |
Anina's Christmas Tree This Christmas Anina and her friends have decided to make some Christmas trees to decorate her town.... |
Can You Help? Hey, hello! Yes, I am talking to you, whoever is reading this problem statement. I know you are Robi... |
Tags
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
