Problems from National High School Programming Contest 2021 - Mock Contest 1
A.
Butcher of Vowels ...if I'm to choose between one evil and another, then I prefer not to choose at all. -- Geralt (Th... |
B.
No More Child Labor Child labor is a global crisis. As you are a problem solver, you need to be aware that many children... |
C.
Video Game Pro Shefin is playing a video game. In this game, there will be $N$ buildings in a row. $i^{th}$ buildin... |
D.
Simple And You are given a tree containing $N$ nodes. The nodes are numbered from $1$ to $N$. The root node of ... |
E.
Code Generator Disha has a string $S$. In one second, Disha can choose a subsequence from $S$ that make the word “c... |
F.
Next Permutation A sequence of $N$ distinct integers is called a permutation if all the integers are between $1$ and ... |
G.
Big LCM Let, BLCM(a,b) be the smallest positive integer which is divisible by all integers in range [a,b]. G... |
H.
Interactive GCD This is an interactive problem. Alice and bob are playing a game of Interactive GCD. The game engine... |
I.
The Hidden Island It is believed that the hidden island of TreasureLand has many unsolved mysteries and undiscovered t... |
J.
Arrange the Bricks! You have $N$ bricks two dimensional bricks of the dimension $1 \times 2$. The bricks are rotatable i... |
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
