Problems
Building the Number This is a straight-froward problem. You will be given N. You have to find the expected value of buil... |
Building the Wall Building walls around a country has become a popular modern day trend. The emperor of Promiseland of... |
Building the Wall 2 The story of walls continue, here's a quick recap: Building walls around a country has become a popu... |
Bulls, Cows, and Digits Let's play a game. This game is a few centuries old. Nonetheless, it is a good one for an interactiv... |
Burger King Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ... |
Burrows and Scofield Michael Scofield and Lincoln Burrows are working on a secret mission. Michael is needed to give a se... |
Business for Badminton Monty is a little sport-lover boy in his village. Everyone knows Monty for his love towards sports. ... |
Bus Ride in Summer, Hot as Hell A bus goes from place A to B and returns from B to A. Now there are N stops in its route. INi people... |
Butcher of Vowels ...if I'm to choose between one evil and another, then I prefer not to choose at all. -- Geralt (Th... |
Butterfly A string is a butterfly string if it has a 0 at the middle of the string and at both sides of 0 ther... |
Buy Two, Get One Free During the Covid-19 pandemic, the members of the Demon Slayer Corps are relaxing at their own houses... |
Buzz Lightyear Buzz Lightyear (character from famous movie ‘Toy Story’) is done with inter galactic battle and now ... |
Byang and Kochuripana Trouble Byang is the chief software engineer at Toad Incorporated. His grandmother is planning to give him a... |
Byang and The Grid Game Byang has invented a game he wants to play with his soulmate Byangette during their spare time. The ... |
Byang and War Tactics Byang is learning about War Tactics from Raat, a famous martial arts master, who has successfully tr... |
Byang of Interest Byang is the most famous detective of Dhaka City. He has just received a secret document regarding h... |
Byang's Additions Byang is learning how to add numbers. However, he gets confused whenever there is a carry. To help B... |
Byang's Assembly Byang doesn't need your help with his projects... Except with this project that his teacher wants hi... |
Byang's Day Out! Byang and his little brother Kuno loves Cricket. But they never went to the stadium to watch a match... |
Cache Cash You are a software developer in a reputed firm. For a previously written badly optimized module you ... 
Moderate
4/7/19 |
Caching Combinatorics Recently Arya the little panda got a permutation of size $A$ as a birthday present from his parents.... |
Caesar Cipher Byang wants to write a secret message to his friend. He has recently discovered Caesar Cipher. Caesa... |
Cafe 12 There is a restaurant named Cafe 12. They have arranged their seats in two rows, each row consists o... |
Cake Controversy “Stop War, Save Life” – A life-changing motto proposed by Peace Want Society (PWS). To establish thi... |
Calculate the Sum If You Can This problem deals with the following expression: 1−2+1−2+1−2+1−2+1−2+1−2+1−2+... Given n, you have ... |
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
