Problems
OCD Returns! This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o... |
Magic Square A little boy Towhid is good at mathematics. He solves a lot of mathematical equation regularly. He i... |
National Flag Today is the 16th December, a red letter day of our national history. The whole country equipped wit... |
Jenia's Homework Jenia is a very talented girl. She got homework from school. She is such a nerd who cries if she can... |
Poltu and Digit Product You are given two integer L and R. You have to find the summation of digit product of all number fro... |
বান্ধobi My sister's best friend - Anusha is like a sister. Her family and my family are like family. We giv... 
Moderate
26/30/70 |
Find the Ship You will be playing an interactive game in this problem. The game is played on a 7×7 square grid. Ea... |
Mickey the Magician Mickey the magician is working on a vaccine for COVID-19. But he is not sure if the vaccine which is... |
Rick and Morty Rick and Morty are playing a video game called "Shoot 'em all". In this game, a player shoots his op...
Very Easy
167/167/194 |
Why the Long Face? Consider the following figure: Ciri and her horse Kelpie are standing at point A. She needs to go to... |
Description is Pathetic Do you know what is the hardest part of creating a problem? Thinking and writing the description. Yo... |
Maze Ball Game Your friend Yulianna Karaulova, likes to play maze ball game. You are going make a DIY project to bu... |
Spam Me Not Your team has been tasked to build a section of a web app where users can choose whether and how the... |
Byang's Assembly Byang doesn't need your help with his projects... Except with this project that his teacher wants hi... |
Poltu the Legend Serajnagar M. A. Pilot Model High School is situated at Raipura, Narsingdi, Bangladesh. This school ... |
Biswa and Restaurant Business After huge success in Borhani business, Biswa has recently started restaurant business. He’s got the... |
Sheldon's Obtuse Triangle We all know Sheldon Cooper from The Big Bang Theory. Recently he got his Nobel Prize. He likes polyg... |
I Hate Combinatorics! Rick and Morty are being hunted by the galactic government. They ran away to the cell dimension. The... |
Nothing’s more contagious than laughter Gotham, a city full of criminals. But there is one who is more than just a criminal. He brings pure ... |
Is This a Give-Away? Once there lived an ancient mage named Farabi. He could always give perfect weather forecast. He nev... |
The Wise Man Lukman loves to search the root of everything.Once he was reading the holy Quran. At the beginning h... |
ML Vs AI Nowadays, CS students try to learn Machine Learning and Artificial Intelligence even before learning... |
Enormous Product You are given two integers l and r. You need to find the value of x=l∏rx(x+1) As the value of this ... |
Selfie Restriction Do you know the boy named Amlan? The only dream of his life is taking selfies. He takes selfies even... |
Distinct Permutations You are given two binary strings A and B. Recall that binary string is a non-empty sequence of chara... |
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
