Problems from Criterion 2021 Round 9
A.
Kingdom of Crisis In a kingdom far away, $N$ people live in a circle of harmony. Literally, they have constructed a ci... |
B.
Shortest Path? Given an unweighted, undirected and connected graph consists of $N$ nodes numbered from $1$ to $N$. ... |
C.
Shortest Sub-Array You are given an array $A$ consists of $N$ elements. You have to perform $Q$ queries on the array. ... |
D.
Save the Forest Last year, our largest rainforest Amazon suffered the worst wildfire of the decade. The wildfire cau... |
E.
Meena Raju and Two Trees Meena's father gifted Meena and Raju two trees. Since they may quarrel, these two trees are exactly ... |
Practice Contest
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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
