Problems
Bikpik Colony Bikpiks are very small aliens. Day by day they are becoming very dangerous for human being. They liv... |
Problematic Problem Setters A new national level contest will be held next month. So chief judge asked some problem setters to s... |
Secret Sorting Order You will be given a list of words which were sorted based on some unknown ordering among the letters... |
Be Efficient!! Little Anita was again thinking about a problem! Recently she was thinking about installing some foo... |
Spanning Tree There are N nodes in a tree. You can start from any node of that tree and you have to come back to t... |
Village Fair 2 There are N houses in a village far away from here. They are numbered from 1 to N. For this problem ... |
Big Bang Theory Dr. Sheldon Cooper is working on a project that works on the 2D concept of the universe. In this pro... |
Alice Loves to Play Games Alice loves to play game. Recently, she downloaded a new game from google play store. In this game, ... |
Civil War The fight for the best superhero (superman vs batman) in the universal is going to finally come to a... 
Moderate
23/37/69 |
Picking Up Chicks A flock of chickens is running east along a straight, narrow road. Each one is running with its own ... |
Patterns of Coffee Type Research (or thesis) is a time-consuming task. One can not define research as a straight line from w...
Very Hard
38/43/107 |
Help Alex Jhon! Alex Jhon is a very good man in his village. He always helps his neighbors and poor people as much a... |
Protect the Dark Lord The time has finally come for the last battle between The HERO and The DARK LORD!!! But sadly in thi... |
Tahsin and Tree Tahsin loves graph theory very much. He is especially fond of trees. For his upcoming birthday his f... |
Hello From Linear Algebra Techboy has m equations with n unknowns like below – ai1 x1+ ai2 x2+⋯⋯⋯⋯⋯+ ain xn= di , where 1≤i≤m ...
Moderate
6/10/36 |
Around the Square You are given a square and there are four circles which are overlapping the square. The center of ea... |
Ross at a Loss You might have seen Internet's greatest meme (later turned into a template) - Loss (The image on the...
Moderate
33/40/98 |
Can IUTPC Resist the Coders? IUT CSE’16 batch students have completed their C Programming Course. As they are so dexterous progra... |
Just Primes II (Hard) Given a positive integer N, calculate the minimum number of distinct primes required such that their... |
Crisis in Antartica Mr X and Y are famous chemists and mathematicians who live in Antartica. You know, it's a cold place... |
Water Project of Black Iceland Black Iceland is one of the largest populated city in this world. Due to pollution and scarcity of p... |
Just Primes II (Easy) Given a positive integer N, calculate the minimum number of distinct primes required such that their... |
Cover the Points You are given a set of points P, and a set of target points M in 2D space. For each point M[i] in M,... |
Easy Prime! There are N numbers in an array. You will have Q queries. In each query, you can make 2 operations. ... |
War of Kingdoms There is a country named WARLAND. It is a big country, so it is divided into N kingdoms. Each kingdo... |
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
