Explosion There is a house named Larcana. It is a very weird house. There are exactly N rooms in total and bet... |

Finding Lines Annabel and Richard like to invent new games and play against each other. One day Annabel has a new ... |

Goku's Tree Recently Goku has discovered a rooted tree graph. Goku’s tree has N nodes, among them node 1 is the ... |

Expected Result A witch has imprisoned Bob in the 1st room of the Central Witchland Hotel. The hotel is weird. All t... |

Building the Number This is a straight-froward problem. You will be given N. You have to find the expected value of buil... |

The Lucky Dice Ray and Evangeline are playing a game named "The Lucky Dice". In this game, each player tosses up an... |

Sheldon's Obtuse Triangle We all know Sheldon Cooper from The Big Bang Theory. Recently he got his Nobel Prize. He likes polyg... |

Expected Oddness Alita found a string of n characters where each character of the string is either '0' or '1'. The Od... |

Random Graphs This problem is very easy. There's a graph of $N$ nodes. Each edge $u-v$ ($u >= v ; u = v$ is possib... |

Earn Your Cupcake A delicious NxN grid is given to you. All the lattice points of this grid contain a cupcake each exc... |

Prisoners Let me tell you a story of a dangerous prison. There were N prisoners in that prison. It is guarante... |

Table Tennis One day you have invited Sohel bhai to come to East West University to see an intra-University table... |

Divide Candy Again There are N boxes with candies numbered from 1 to N. The number of candies in the boxes numbered 1 t... |

Walking Down The Road There is an M meter long road with the leftmost point of the road being the 0 meter point and the ri... |

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... |

Morona Virus Arrived "Cover your nose and mouth with a bent elbow or tissue when you sneeze or cough." World has defeated... |

Game Show Alex is participating in a game show. Mr. Phil is the host of the game. Alex is provided with an arr... |

Jimmy and Jamy Jimmy and Jamy are two brothers. They like to play with colored marble. Jimmy has N boxes with three... |

The Matrix In the metaphysical world of the Matrix, different people make their chessboards with their own spec... |

Marbles Per Second You have a rooted tree of n nodes. If we traverse the tree from the root, let’s say the traversing o... |

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

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