An Obvious Interactive ProblemI pick a number. You guess it. You can guess at most 25 times. For every guess you make, I will tell...

IceCream of Montu Mia Again!Montu Mia is a student of “Omok School”. He likes to eat an icecream every day. But he also likes t...

Balanced ReliefThanos just finished his relief work. We all know that Thanos loves balanced things. So he finds som...

Sofdor Ali and Attack OptimizationTuki and Jha is in the middle of an interplanetary war and their base is under drone attack! They ar...

Be Like HasibHasib, the famous programmer, uses a little game when he teaches Binary Search to his students. He r...

Easy Sequence 1Let’s define an easy sequence F. Where F(1)=1 F(1) = 1 F(1)=1 F(2X)=F(X)2+1 F(2X) = F(X)^2 + 1 F(2X)...

The Multiplayer Action GameHave you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action ...

Largest PrimeA positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...

Kitorp and His LoveKitorp loves his wife Asiar(who is a problem solver as well) but he loves math more. To get his atte...

Spot It!Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t...

Master PlanGakra Miah is a Wollywood movie lover. He watches movies almost everyday. He has watched so many mov...

Lucky ShirtMarjokes is a very famous comedy personality in Byteland. He is a poet, a writer, a singer and an ac...

BuildingsThere are n buildings in a row. The height of the i'th building is hi. You have ৳k. It is the amount...

Mind Flayer Has Attacked Again!Mind flayer, the shadow monster has attacked the town of Hawkins again. This time, the mind flayer h...

I Scream, You Scream!Meem loves ice cream cones. So much so that she created an ice cream stand to share the joy of ice c...

Complex OperationsYou are given an array A of length N. You have to perform two different types of operations. In the ...

The Story of StringlandThe king of Stringland is employing an elite force of undercover agents to protect the kingdom from ...

Poltu and Interesting NumberPoltu Loves interesting number. So he wants to find this type of number. The definition of an intere...

Most Difficult Problem EverYou are given a function like below: long long F(int A, int B, int C, long long x) { long long res =...

Answer the QueriesGiven an array of N elements, indexed from 0 to N1. Now you are given some queries in the form [L, ...

XOR PartitionNeo has a hidden array A of n integers where 0 ≤ Ai ≤ 109 is satisfied for each i from 1 to n . You ...

MSequenceA sequence is called Msequence if after removing zero or more elements from the sequence the GCD of...

Jenga TowerMaybe you all are familiar with Jenga Game. "Jenga is played with 54 wooden blocks. Each block ...

N CitiesIn a country there are NNN cities numbered from 111 to NNN. To Travel along the cities there are tot...

WatercolorBob is the owner of a shop named "Color Maker". He has 256 types of watercolor in his shop...

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