Problems
Device ID A device ID is a distinct number associated with a smartphone or similar handheld device. Every smar... |
Primary Key "Clarity-Lon" is the new awesome e-commerce based startup that went to the top of the chart within f... |
Yet Another Xinversion The problem statement is simple. You are given a rooted tree (1 is the root) and every node has a co... |
Infinite Game One day Oditi and her two brothers Sam and Ron were feeling bored as their summer vacation was almos... |
Tragedy of TAMA A tangent to a circle is a line in the plane of a circle which intersects the circle in exactly one ... |
Kingdom of Code Kingdom CODE is the most peaceful place in the universe. King NOVOSH and Queen ALMIDA is ruling this... |
Gaaner Koli The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi... |
Uncle M J's uncle Mr. M is obsessed with statistics. Wherever he finds data he likes to apply statistical an... 
Hard
10/10/25 |
Orchid Division Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row... |
Party Lights The famous mafia leader of Byteland, Don Mukuvich, is hosting a party and he has decided to decorat... |
Nothing’s more contagious than laughter Gotham, a city full of criminals. But there is one who is more than just a criminal. He brings pure ... |
Alien Neural Network The great researcher Dr. Bari loves to do research. He recently discovered a parallel universe. Now ... |
Assigning Workstations Penelope is part of the admin team of the newly built supercomputer. Her job is to assign work-stati... |
Composite Facts Let's define two functions F and S: F(n) = 1 + n! S(n,m) = Sum of first m non-prime integers which ... |
The Greedy Mathematician Once upon a time, there lived a man called Mahi the mathematician. He was banned from his kingdom be... |
Birthday Present Today is problem setter's best friend Jenny’s birthday. Long ago, Jenny, being a very clever girl, a... |
Stark Tree “And I am the Iron man”… After, saying this line Tony Stark saves the world with his life. Before dy... |
DNA Demolition Four types of bases are found inside a DNA molecule- Adenine (A), Cytosine (C), Guanine (G), and Thy... |
Contest Area Dr. Wu has organized a programming contest and invited teams to participate. As It is a long contest... |
Bonus Project HOJOBOROLO, a multinational company, has N employees numbered from 1 through N. Each employee, excep... |
Hirak Rajar Desh Hirak Raja, the king of the country “Hirak Rajar Desh”, the conqueror ultimate, wanted to expand his... |
Helikopter Helikopter Tommy Vercetti has completed the infamous RC helicopter mission after many attempts. And now he ne... |
Many Paths, Many Costs Alice and Bob are visiting Byteland. They are observing the map of this country. Surprisingly, the m... |
Oyler's Geometric Jumps The road from Oyler’s home to his school has nsteps, where his home is at step 1 and his school is a... |
Pairexp Given two numbers, print the number only if both numbers are the same. |
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
