Problems
Buzz Lightyear Buzz Lightyear (character from famous movie ‘Toy Story’) is done with inter galactic battle and now ... |
Set the Meeting Three colleagues Motu, Biscuit and Ramjan are in Sundarbans now. They are on a mission to protect th... |
Pudding and Coins Pudding is playing a game that has n levels. There are a total of n(n+1)/2 coins spread out among th... |
Shuvo Noboborsho! "Shuvo Noboborsho" is the traditional greeting for Bengalis in the Bengali new year which means "Hap... |
Switchblade of Thanos We all know that Thanos “The Mad Titan“ had two adopted daughters, Gamora and Nebula. But did you kn... |
Maximum Distance You know it’s hard seeing your favorite person being interested in another one instead of you. At th... |
XOR Is Fun Efa hates numbers. But she loves the XOR operation. This time, you have to solve another problem for... |
Many Paths, Many Costs Alice and Bob are visiting Byteland. They are observing the map of this country. Surprisingly, the m... |
Birthday Present?! As everyone gifts graphs or strings to people on their birthdays, Oyshee’s friends decided to do som... |
Nilkhet You’re planning to start a library for the next n days, where you will rent books to students. Each ... |
Divisible LCM You have a sequence a1, a2, a3, …, an of n integers and q queries. In each query, you are given ... |
Subtree MEX You will be given a balanced binary tree of N nodes. Each of the nodes of the tree will contain a no... |
Powerful Number Efa loves numbers. She thinks a number is powerful if it can be expressed in the form xy where x and... |
Counting Friends Johnny uses a social network called Supernova. Unlike the other social networks, Supernova does not ... |
How Do You Make a Problem? I am very busy these days. So when I was told, I have to create a problem for the contest, I was sli... |
Helikopter Helikopter Tommy Vercetti has completed the infamous RC helicopter mission after many attempts. And now he ne... |
Dirty Politics This is an interactive problem. (If you want to know about interactive problems, click here) Your co... |
Harry and Hermione - 2 [1 and 2 are completely different problems. Consider reading both.] The monsters are back again. Har... |
Adam Young “It's hard to say that I'd rather stay awake when I'm asleep 'Cause everything is never as it seems ... |
Harry and Hermione - 1 [1 and 2 are completely different problems. Consider reading both.] Harry and Hermione are in a figh... |
Floor No. 20 You are at a 12 story building called ECE Bhaban. You have just entered into a lift which has took y... |
A Game of Bots You were idly scrolling through your Phesbook feed one morning when you discovered an ongoing event ... |
Misti Chor Bhootu likes to eat misti. As he is a mischievous kid, he has decided to steal misti from the nearby... |
Wireless Signal The city of Byteland is rectangular in shape and can be represented as a 2D coordinate system with n... |
Land of Riches Mankind has recently discovered the secret wealth in Mars. Many powerful countries are trying to get... |
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
