Problems
Sanvi and Happy Pairs Sanvi is a very little and so much cute girl. She was playing with an array A of length N. While doi... |
Subsequence Fight You are given an array a1,a2,…,an consisting of n distinct integers and an integer k. You can cho... |
Ne-Zu-Ko Chaaaaaaaaaaaaan! Tanjiro and his sister Nezuko live in a village that is shaped like a circle with a radius R. There'... |
Special Pair Mr. X is an “array pagla” person. He loves doing different types of things with arrays. Today Mr. X ... |
Groby In the 1970-80s, students in the Soviet Union had to face quite a hurdle. The administrators of sele... |
String Game You have a list of N strings, denoted by A1, A2, ..., AN. Each string consists of lowercase English ... |
Help IKRI Ikri has a binary string s of length n. (each character of s is either 0 or 1) The weight of the bin... |
Lucky Stone Game Alice and Bob are playing a stone game. They consider 4 and 7 as lucky numbers and they like to make... |
Not Nim Alice and Bob recently learned about Nim. In a Nim game, two players play a game on several stacks o... |
Hardest Problem Ever Prof.Dr.DP is very famous professor. He is expert (actually legendary grandmaster) in Dynamic Progra... |
Exponential Growth You will be given two integers X and N, you have to calculate XN modulo 1000000007. |
Cache Cash You are a software developer in a reputed firm. For a previously written badly optimized module you ... 
Moderate
4/7/19 |
Keep Away From Those Oceans We all know the great story of the Ant and the Grasshopper. Clever Ant survived the tough time of wi... |
Ulta Masud Mr. Masud is a superstitious executive of an administrative office in Wadia, and you have to bribe h... |
Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |
Chowdhury Saheb & the Numbers You like short description of problems? Me too! Let's go to an easy problem. You are given an array ... |
Prime Range Prime Numbers are such numbers which are only divided by 1 and the number itself. 2, 3, 5, 7, 11, 13... |
Birthday of Aliens On the planet of Royal Royal, a university named Royal University of Engineering and Technology exis... |
MonoMono You have probably heard of the famous board game, Monopoly. According to Wikipedia, in this game, pl... |
Run Barry, Run Flash is a fictional character in DC comics. He is regarded as the hero who can run and heal fast. S... |
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 ... |
Simple Because all the problems are so hard these days, this is a very simple problem. Suppose you are give... |
Wheel Graph Today we will learn about a special type of graph called Wheel Graph. In the mathematical discipline... |
M-Sequence A sequence is called M-sequence if after removing zero or more elements from the sequence the GCD of... |
A Very Tough Problem Now-a-days life is very Toph and you need to face a lot of Toph problems. Here is another problem li... |
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
