A.
Chief Thief A group of thieves steal only money. Every morning they deposit the money to their leader. The leade... |

B.
Homework Matthew has purchased a new game and isn't feeling like completing his home work his teacher gave it... |

C.
Sudoku The Prothom Alo newspaper sometimes publishes Sudoku for interested readers to solve. Later the solu... |

D.
Scholarship Your school is going to start a new scholarship program. To apply for this scholarship you have to w... |

E.
Laser Light A 2D grid consists of a lot of special lights bulbs, which turns on upon the incidence of a laser li... |

F.
Cashback Cashback on payment methods (e.g. credit card) is a common term nowadays. That is, if you pay using ... |

G.
Spot It! Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t... |

H.
Brush Drawing Arav is a curious young boy. He is learning to draw circles. He only got one color but a lot of brus... |

I.
Number Game Jhontu and Montu are brothers. They tend to skip study and play. So to keep them busy, a senior stud... |

J.
Lonely Divisor Given a positive integer $N$ you have to find itâ€™s lonely divisor. The question is what is Lonely Di... |

K.
Super Sort Given an array of numbers and a non-negative integer K you have to sort the array in such a way so t... |

L.
Victory Robot Your school is going to arrange a ceremony to celebrate the upcoming victory day. So the high school... |

Practice contests allow you to re-run contests and experience them as close as possible to the original run.

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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