Problems
Hardest Update and Easiest Query You have an array A with n elements which is indexed from 1 to n. Now you have to deal with two type... |
Sanvi and Happy Pairs Sanvi is a very little and so much cute girl. She was playing with an array A of length N. While doi... |
Say It! You will be given an English letter'(A'-'Z' or 'a'-'z'). You have to say whether it is lowercase or ... 
Easy
97/98/131 |
Hardest Problem Ever Prof.Dr.DP is very famous professor. He is expert (actually legendary grandmaster) in Dynamic Progra... |
LazyM versus Arnab There is a monster called lazyM in Rihamland who is the leader of this land. But another betrayer mo...
Moderate
4/4/8 |
Bitcoin Currency Prediction Bitcoin is a digital currency created in 2009.It follows the ideas set out in a white paper by the m...
Moderate
3/3/4 |
Shrawan Barsha Our hero ‘Shrawan’ is in love with a beautiful girl named ‘Barsha’. On the upcoming Valentine Day, h...
Moderate
5/6/16 |
Code Crack Miss Abida a tech-smart student. Her friend M.Roy developed a social media site bugbook.com. Miss Ab... |
Lets walk on grid You will be given a grid of size N * M. The character of grid is either ‘.’ Or ‘#’. '.' means free l...
Moderate
4/5/9 |
Let’s Build Nepal In our country, there are many political leaders belonging to different political parties. They alwa... |
Mina and Raju Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina... |
That's 1 Minute See You Tomorrow You may heard the name of Nas Daily, a Facebook page by a travel video blogger Nuseir Yassin. He cre... |
Byang's Additions Byang is learning how to add numbers. However, he gets confused whenever there is a carry. To help B... |
Tidy Bits Read an integer variable, and determine the smallest positive integer that has the same number of 1s... |
Decent Arrays Given N numbers determine if they are in ascending order. |
Better Passwords Byang is creating an account on Toph. He needs your help to create a strong password. Byang will giv... |
BLACKPINK in Your Area! Oh wait til’ I do what I do Hit you with that ddu-du ddu-du du Aye aye Hit you with that ddu-du ddu...
Moderate
7/13/28 |
Word Blitz! I am sure you have heard of the famous messenger game Word Blitz! You can play the game with an oppo...
Moderate
2/3/10 |
Once Upon A Time In Child Hood In his childhood Ashiqul Islam was very romantic. One day he saw his childhood crush standing on the...
Moderate
5/5/5 |
The Game of Two Sharan, the brave boy, is currently standing at the origin (0,0). He is taking part in The Game of T...
Moderate
10/15/40 |
Arrays LCM How many arrays of length N are there such that all elements in the array is in range 1 to M(inclusi...
Moderate
2/3/4 |
Weird Sum Yor are given an array A of size n. You have to make another array B which must be a permutation of ... |
A starry night of Keokradong It's Term Break. Hurray !! Muttaqueen is on a tour with his friends at the peak of Keokradong. Adda,... |
Gift Today is Anik's Birthday. Saad wants to give Anik an array as birthday present. But Anik is afraid o...
Moderate
23/27/55 |
Substring Divisibility The evil problem setter has to set a problem. But he cannot find a good problem to set. After thinki... |
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
