Problems
Ticket Counter Most of you have been to newly built Khulna Railway Station. Let's say there is only one ticket coun... |
Infinite Shuffler HeRock made an infinite array shuffler, which he thinks nobody can hack. The machine takes an infini... |
Mettaton Attacks This is an interactive problem. Mettaton, the star of underworld TV show attacks you again with his ... |
Mr. X and Balloon Race Mr. X is going to plan a game for the upcoming picnic for his company. Here are the rules, Every tea... |
The Answer to Everything What is the answer to the ultimate question of Life, the universe, and everything? It is You will be... |
Rotation and Queries You will be given a string S consisting of lowercase English characters and N queries. In each query... |
Invite the Heroes There are n cities numbered from 1 to n in a country. Two consecutive cities are connected by a bidi... |
Shelly's Adventure Shelly and her friends have set out on an adventure and have come across an island. The island has a... |
Stuck at Home After researching the Coronavirus researcher come up with a solution to tackle all kinds of mutation... |
Prefix and Suffix Initially, you are given an empty array A. You have to perform the following queries. 1 P - Add an i... |
Counting Matrices Given a natural number N and a prime p, let’s define a special set Zp={0,1,2,…,p−1}. Now count the ... |
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... |
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... |
Network Reach Shohurephone, the popular telecom company in Swapnodesh has received a lot of backlash over the last... |
Easy Pythagorean Triplet One day Mostafiz and Evan were talking about Pythagoras. Mostafiz told that Pythagorean Triplet is v... |
Alter ___________________________________________________________________ the solution is yet to be found ... |
Fraction and Its Representation Given three integers m,n,b (m<n), let’s consider the representation of m/n in base b. Since m<n, res... |
Two Words Given a line of text (space-separated words), find the first word that appears at least twice in the... |
Half Measures The numbers 1,2,3,⋯n (each integer from 1 to n once) are written on a board. In one operation, Jesse... |
Predict The Frequency Luis was sleeping. He suddenly woke up with three positive integers N, M and X. He told his younger ... |
Argentina Vs Saudi Arabia Argentina Suffered one of the World Cup’s greatest shocks as Saudi Arabia came from behind to win an... |
Reassemble There are N posts in a line numbered from 1 to N from left to right. Each post i has a distance di ... |
Gardening You are given a tree with N vertices. Here, a tree is an undirected graph in which any two vertices ... |
Peculiar Partitioning II You are given an array a of length n. Each element of the array is a non-negative integer less than ... |
Farewell Alice has found an array A containing n non-negative integers, where the i-th element is named Ai. ... |
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
