Easy Sequence 1 Let’s define an easy sequence F. Where: F(1)=1 F(2X)=F(X)2+1 F(2X+1)=F(X)×F(X+1)+2 Here X is a posit... |

Make It Big! You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c... |

The Perfect Collection Given an array A of N integers, if we choose any K of these integers and calculate their bitwise XOR... |

Maximize Sum You are given two integer arrays A and B of length n and m respectively. You can do the following op... |

LIDS We all know about LIS (Longest Increasing Sub sequence). The task to find the length of the longest ... |

Knapsack You have a backpack that can carry a maximum weight of C. You will also be given a set of items, the... |

Video Game Shefin is playing a game. In this game there are N buildings numbered from 1 to N. Each building has... |

Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |

Help Chokro Pias and Chokro are good friends. Pias's birthday is coming soon. So, Chokro wants to gift Pias an a... |

Holy Tree What is a tree? A tree is a bidirectional connected graph with no cycle. In a tree, we can create ... |

Hasinur's Mission! Let me tell you something about Hasinur: He is a religious person. He prays 5 times a day. He loves... |

No GCD You are given N integers. Each integer is square free (i.e. it has no divisor which is a square numb... |

Harry Potter and the Vault of Gringotts "There was a break-in of Gringotts Wizarding Bank on 1 May, 1998, during the height of the Second Wi... |

Gaaner Koli The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi... |

Alice in Candyland Alice came up with a new game. In this game called "Candy Quest", there is a NxN size 2D grid. In ea... |

OCD Returns! This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o... |

Subarray Sum You are given an array having N integers. You have to select at most K positions in the array and re... |

Maximum Sum Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,... |

Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |

Very Dirty String Strings are difficult, most of the contest programmers say this and try to avoid string algorithms. ... |

Third Dimension Mr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across... |

Orchid Division Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row... |

Smart Feature Phone 2 Alice worked in CIA. Right now he need to send an encrypted message to the headquarter(HQ) of CIA. ... |

Counting Murgis Ever since that wicked thief took away some of her murgis (hens, that is), Meena was ever anxious th... |

Happiness If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ... |

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

Toph uses cookies. By continuing you agree to our Cookie Policy.