Problems
Fancy Phone Numbers A phone number is fancy if any one of the following conditions is satisfied: At least 4 consecutiv... |
Restore Missing Values Consider an array of 'N' integers which is indexed from '1' to 'N'. Exactly 'Q' queries numbered fr... |
Beauty Factor Mehedi and Burhan are two friends. Yesterday they have participated in a class of sorting. Actually ... |
A Lazy Statement Milk has created an account in the newly launched social network Coffeebook. However, she cannot dec... |
Anita's Experiment Little Anita is doing an experiment with herself. Everyday, depending on her mood, she determines a ... |
Profitable Home Milk and Mocha want to move to a new house in Coffeeland. They don’t like ugly corners sticking into... |
Fortis Fortuna Adiuvat Your very close friend, John, also known as the Baba Yaga, is often on various missions to complete ... |
Safwan's Book Bonanza A grand book fair is taking place in your city, showcasing a dazzling array of books and publication... |
Poga The War Stopper Poga is a war victim who lost everyone dear to her in war. Now, she leads a team of veterans who try... |
Nitu and Pseudo-code Last night, Nitu came across the following pseudo-code. She understood that this method would take t... |
Is Bita Happy? Bita has learned bitwise-operations recently. She is doing some experiments with these operations no... |
Newbie Boba has opened a toy-manufacturing company that has n workers, where exactly m workers are newbies ... |
Two Friends CodeMask and CodeNewtons are two friends. Today they are playing an interesting game. The game invol... |
Just Another String Problem A string is called good if the number of occurrence of every character in it is even. For example, “... |
Programming Languages !!! Joy is a programmer. He likes to learn various programming languages. He has already learned many pr... |
City of Atlantis Have you ever heard of The Atlantis City? It’s a Greek mythological city. Its existence doesn’t matt... |
Find the Good Sequence Let's say two numbers are called "good" if their difference is at least 2. Similarly, a sequence is ... |
Jontrona of Liakot Liakot, the king of Cox's Bazar, is currently in a dire situation. His own younger sister Ayesha is ... |
Eet Izz Phet! A long long time ago, I left the country that was my home and with my head full of brains and shoes ... 
smilitude, wasiahmed, sahedsohel
BinarySearch, Hashing, Implementation, Sorting, String
Very Easy
225/273/950 |
Sgt. Laugh That's it. Sgt. Laugh has had enough. He is determined to end the evil military reign of General Cry... |
Joker's GCD Test Joker has a sequence P of n integers. Each two elements in the sequence are pairwise distinct. He de... |
Smart Feature Phone 2 Alice worked in CIA. Right now he need to send an encrypted message to the headquarter(HQ) of CIA. ... |
You Want Chocolate? Bear Limak is very much fond of chocolate. His mom wants her son to study hard and develop his skill... |
Game on Mars In the year 2020, Alice and Bob will land on Mars just to play a game that will be broadcasted live ... |
Earn Your Cupcake A delicious NxN grid is given to you. All the lattice points of this grid contain a cupcake each exc... |
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
