Math Problems
Is Bita Happy? Bita has learned bitwise-operations recently. She is doing some experiments with these operations no... |
Calendar of Planet Biku Mr. Hikiko is the emperor of a planet called Biku. He got a gift from planet earth which can count t... |
Christmas Tree Professor Rio has an amazing Christmas tree. Unlike other trees, this Christmas tree has some specia... |
Lazy Supermen There are two hills in Sonargaon. The heights of them are H1 and H2 meter. The distance between the ... |
Chowdhury Saheb & the Numbers You like short description of problems? Me too! Let's go to an easy problem. You are given an array ... |
Little T2 and Dead Cats The planet earth has become peaceful again because all the cats are dead. An evil robot named Xorged... |
Level Up You are playing a game that has 16 levels. You start with level 1 and after gaining a certain amount... |
The Lucky Dice Ray and Evangeline are playing a game named "The Lucky Dice". In this game, each player tosses up an... |
Killing Floor $N (1 \leq N \leq 10^{18})$ robots have decided to take part on a battle royale. Every robot has a u... |
Building the Number This is a straight-froward problem. You will be given N. You have to find the expected value of buil... |
Arko and Special Permutations Arko is very fond of permutations. He can easily calculate the number of n length permutations. (In ... |
Magic Number Count Magic number is an integer number, which is only divisible by itself and total number of divisor wil... |
Counting Subsets Mr. Meseeks has just turned evil and is on his way to destroy the universe. To stop him Rick and Mor... |
Choice Is Yours For not participating on contests regularly, Hasnaine (read Has9) has decided to kill Santo. But nob... |
Meeting Place There is an N*N grid where (r,c) denotes a cell number where r means row number, c means column numb... |
Co-Prime Enemy Pair Two integers A and B are known as co-prime or relatively prime if their greatest common divisor GCD ... |
Color The Graph You are given an acyclic, bidirectional graph with N nodes and M edges. The nodes are numbered from ... |
Hasinur's Mission! Let me tell you something about Hasinur: He is a religious person. He prays 5 times a day. He loves... |
Arunima City After the big decentralization process, where Dhaka city's population were relocated, a new city cal... |
Is It Perfect Bob has an initial array D of length n . Alice is a good friend of Bob. So Bob challenges Alice to f... |
Mag the Mighty Kaidul The winter is about to come. Mag the Mighty Kaidul is waiting for it for days. It is his favorite se... |
Nodes and Depth From the above figure, the number of nodes for the first three depths are 3, 9, and 27. You will b... |
Magician's Offer! Rosi Vidmun is a greedy landlord who likes to grab as much land as he can. Currently he has P square... |
Cocoa Coalition Alice and Bob decide to share a chocolate bar, which is an $n$ by $m$ rectangular grid of chocolate ... |
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... |
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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
