Problems
Jumping Frog (II) A frog wants to cross a river. There are some posts in the river. The frog can go from one post to a... |
Quarantiko "If you feel unwell, stay home." Riaz has created a special encryption algorithm named Quarantiko to... |
This Is Too Hard ☹ Many many years ago there was a small country. And all the people there were very weird. They liked ... |
Poltu and Trailing Zero Poltu gives a problem to his friend Boltu. The description is given below: You are given an integer ... |
Simple Because all the problems are so hard these days, this is a very simple problem. Suppose you are give... |
A Tribute to Amelia We all know about Amelia Earhart, the famous American aviator. She was the first female pilot to do ... 
Moderate
12/16/50 |
Beauty of AP Solving problems is fun in competitive programming, right? So let’s solve a fun task today too :P. 1... |
Shrink the Array You have an array of size N which contains positive integers. You can apply the following operation ... |
Last Game of Onslaught Tashfiq and Alam have been on the same team for almost two years. Tashfiq often comes up with some r... |
Photo Matching You’ll be given two matrix M1 and M2 and another integer K. The size of both M1 and M2 are N*N and e... |
Life Is All About Balance Given an array A of N integers, the array will be balanced if you can select at least one index i(1≤... |
Far From Home Spider-Man is fighting the Sinister Six. While fighting he was hit in the head But he somehow manage... |
Big Bang Theory Dr. Sheldon Cooper is working on a project that works on the 2D concept of the universe. In this pro... |
Set, Intersection and Range You are given N sets of integers (S[1] , S[2] , S[3] , ... , S[N]) and Q queries. Each query has 4 i... |
Levi Squad Titans have breached Wall Maria! Since Erwin is in the capital, Levi quickly gathered his squad of $... |
The Reminder to Expect Do you know Trevor Philips? Well he is a mad guy who gets mad at everything. Recently he got mad at ... |
Pleasant Permutations A sequence of n integers is called a permutation if it contains all integers from 1 to n exactly onc... |
Boom Bot Raze is a new agent in Valorant Inc. Currently, she is training on how to use Boom Bot. The training... |
One Ball Many Chocolates Alice, Bob and Charlie, team ABC have come to the venue of world finals to be inspired by the world ... |
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... |
Required String Rajib recently developed a nice game in which he worked on palindromes. Rajib told Raihan to play hi... |
Odd Query A subsequence is a sequence that can be derived from the given sequence by deleting zero or more ele... |
Collect Coins Mario is playing a game where he has to reach a rock by jumping over n (1 <= n <= 10^5) other rocks.... |
Hardest Update and Easiest Query You have an array A with n elements which is indexed from 1 to n. Now you have to deal with two type... |
Expert Programmer Your dream is to become an expert programmer one day and you are practicing day and night for that d... |
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
