Betting BusinessYou have opened a new betting business. You have decided that you will accept bets on the upcoming C...

Pile of CrabsThere is a pile of crabs standing on one top of another. There are total NNN crabs numbered 111 to ...

GCD and SumCongratulations! You’ve been hired in “Buggy Softwares Ltd.” And you’ve been already given your firs...

Melencolia IAccording to Wikipedia, Albrecht Dürer (May 21, 1471  April 6, 1528) was a German painter, printma...

Nearest CoPrimeTwo numbers are relatively prime or coprime if their greatest common divisor is 111. In this proble...

The Answer to EverythingWhat is the answer to the ultimate question of Life, the universe, and everything? It is You will b...

AND Maximum Spanning TreeYou have a weighted undirected complete graph of NNN nodes numbered from 000 to N−1N1N−1. The weigh...

Caching CombinatoricsRecently Arya the little panda got a permutation of size AAA as a birthday present from his parents....

String SortingYou'll be given a string s=s1s2.....sns = s_1s_2.....s_ns=s1s2.....sn of length nnn consisting of...

Dancing TuplesGiven an array AAA of size nnn, find how many tuple (i,j,k)(i, j, k)(i,j,k) are there such that 1≤i&...

Matrix ConstructionConstruct a square matrix aaa of size n×nn×nn×n satisfying the following conditions, Each row of th...

Maximize MismatchYou are given a permutation PPP of number 1,⋯ ,n1, \cdots , n1,⋯,n (I.E. each number occurs exactly ...

No More Shortest PathYou are given a weighted directed graph with nnn nodes and mmm edges. Node SSS is marked as the sour...

Jini and the OneJini’s favorite number is one. She always looks for one in any number and if she finds the digit 1 i...

Here Is a Treat for You 🍕🍔Kagaya Ubuyashiki, the 97th leader of the Demon Slayer Corps, Also known as Oyakatasama to the Dem...

Road to MUZANFrom the earliest times, humanity knows about humaneating monsters, lurking in the darkness to devo...

Inosuke and Trailing ZeroInosuke and Tanziro are overjoyed because Mr.Haganezuka is bringing their sword of revenge. Because ...

Tanjiro’s Training With KanaoAfter the fight in the Natagumo Mountain, Tanjiro felt the need to get sharper. Because in recent fi...

Bored in BoxAfter becoming a demon, Nejuko can’t go out in the sunlight. Most of the daytime she stays in a box....

Vaccination in BDeshBDesh is a very peaceful country with a smaller population. Recently a Spider Demon with a dangerous...

Treat? Itadakimasu…😋So the fight against the demonized humans, who eat good humans, is raging on. And the cause for thes...

Buy Two, Get One FreeDuring the Covid19 pandemic, the members of the Demon Slayer Corps are relaxing at their own houses...

Heart of the Demon“The weak have no rights or choices. Their only fate is to be relentlessly crushed by the strong!” ...

Change QueriesToday is a very special day for Rubel. Recently he got a job in a software company. Now today is the...

Fascination of ZEROSajeeb and Shoikot are two friends. Both are love mathematics. Sajeeb has a fascination with ZERO. T...

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