Problems
Color The Graph You are given an acyclic, bidirectional graph with N nodes and M edges. The nodes are numbered from ... |
See You Again? Tareq and Shawon were two friends of the problem setter's. Many years ago, they died in a road accid... |
Complex Tashreef Tashreef finally received the Zuinness Journal of Galactic records recognition for being the most co... |
Fight Fight Fight We all know, Argentina and Brazil supporters cannot stand each other. An organization decided to arr... |
Highest Difficulty Level The best rank of any teams from BRAC University in any of the ACM-ICPC Asia Dhaka Regional Contests ... 
Moderate
30/39/63 |
Nodes and Depth From the above figure, the number of nodes for the first three depths are 3, 9, and 27. You will b... |
Good and Evil Inside each of us, there is the seed of both good and evil. It's a constant struggle as to which on... |
Niko Plays PUBG Gone are those days when Niko used to be a noob PUBG player. Now he gets “Chicken Dinner” every now ... |
Change Queries Today is a very special day for Rubel. Recently he got a job in a software company. Now today is the... |
Nothing Is Absolute, Everything Is Relative! You are given an integer array, A[] of size N, and an integer M. Then you have to perform a total of... |
War in the Wizarding World There is a deadly war going on between two countries (Bitland and Byteland) in the wizarding world. ... |
Interesting Pyramid Sathi is an intelligent girl. She likes to play with mathematical problems. Everyday she makes some ...
Moderate
19/24/34 |
Hide and Seek You know how to play hide-and-seek, right? In a group of kids, one of them is selected to be the see... |
Order of Digits You will be given a list L consisting of N non-negative integers in a decimal number system. We all ... |
Queen's Dance Alice and Bob love to play certain games where they can show their intellect. Recently they become c... |
Smallest Subarray You are given an array A of N integers A1, A2, A3, ..., AN . If we select two indices (1 ≤ i ≤ j ≤ N... |
Bad Neighbors 2 As some of you already know, Nocu City has a history of having bad neighbors. These bad ones, take a... |
Sticking Pins You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ... |
Secret Meeting The world is terrified by Pandas! After a miraculous chemical explosion, they became smarter; and ev... |
Reverse The Magic You are probably familiar with the technique of representing a Tree as an array of integers using Eu... |
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 |
Interesting Triplets (Easy) Niko just learned about tree. Not those give us oxygen but tree from graph theory. After a while, he... |
CodeSavages "CodeSavages" is a very renowned online judge (Contest Platform) in these days. They provide an init... |
Bracket Sequence You are given an N-dimensional array A. Each cell of this array contains either an opening bracket o...
Moderate
3/3/5 |
Fun Game Let's play a fun game. The game is played in a N x N size grid. There are M players in this game. Ea...
Moderate
6/7/12 |
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
