Problems from Criterion 2020 Round 7
A.
Assignment Assignment Assignment After the season of online classes, now it’s time for evaluation. A teacher wants to evaluate the st... |
B.
Taofiq the House Prefect Tomorrow is a very special day for Taofiq. He is participating in an intra school quiz contest. As h... |
C.
EP-Palindromes You will be given an array of integers $A$. You have to count the number of $\textbf{subarrays}$ (a ... |
D.
Merry-Go-Round The Merry-Go-Round is an amusement ride, popular in rural Bangladesh. Today is your birthday, and to... |
E.
Infinite Shuffler HeRock made an infinite array shuffler, which he thinks nobody can hack. The machine takes an infini... |
F.
Back to Back You will be given an array $A$ of size $N$ and $Q$ queries. The queries will be given in the followi... |
Practice Contest
Practice contests allow you to re-run contests and experience them as close as possible to the original run.
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
