Problems
GCD and LCM You will be given two integers A, B. If A × B (product of A and B) is equal to LCM(A, B) then you ha... |
Keep the Apples Suppose you have n bags of apples and one type of basket. In each of those baskets, you can keep at ... |
Number, Segment, Prefix - All In One (Hard) Xiao Po is building a validation framework for his current project. He is now stuck with this proble... |
Hexagonal Packing Bees are very hard working insects and they are also very good at geometry. In order to minimize the... |
Not Too Hard Showmik is very popular nowadays. Junior coders always seek help from him. He also wants them to imp... |
Room Number 13 Many hotels around the world skip the number 13 and go straight to 14 when numbering rooms. This is ... 
Very Easy
80/114/293 |
Boss Kauke Gune Na It was the time of General Aladeen. "Kabir The Boss" was then a little child. On his birthday, Gener... |
Trivial Summation The problem statement is so small. Give you four integers r, a, b, d. Find the summation of all numb... |
Switches Technology is going ahead very fast. How can we know what will we get in future? One day you met a g... |
Range Product Mr. Jack is a Genetic Engineer but he is not good at Mathematics. At this moment, he is facing a mat... |
The Game of Rocks Alice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co... |
Collect Coins Mario is playing a game where he has to reach a rock by jumping over n (1 <= n <= 10^5) other rocks.... |
Institute of Mathematics Let's introduce you to our very own Mishal Sir. After completing his Ph.D. from the University of Ma...
Easy
134/152/301 |
Game of Strings Redoan is very fond of strings. He wants to go on a spree of solving string problems. His own teamma... |
Can You Make It Close A boy named Poltu is very fond of food. He eats a lot and you can tell so by looking at him. There a...
Moderate
6/40/243 |
Sofdor Ali and Bracket Sequence Sofdor Ali has invented a new game. He asked his assistant Jong Bahadur ( who happens to be a monkey... |
Xiao-metry Master Shifu thinks, besides of being a kung fu master, Xiao Po is a Chinese. So, like his country m...
Moderate
4/5/7 |
Rectangle Division You are given a rectangle which is parallel to the coordinate axis. The lower left coordinate is (x,... |
Gutibaji on Chessboard Let there be a chessboard of size N×M, and only one bishop in a cell (x,y). How many cells can the b... |
Huge Number If N is an integer greater than 0, n factorial (n!) is the product: n × (n-1) × (n-2) × (n-3) × ... ... |
Holy Day Maruf is a student of Dept. of Computer Science & Engineering, Sylhet Polytechnic Institute. Right n...
Moderate
39/40/42 |
Harry Potter and the Vault of Gringotts "There was a break-in of Gringotts Wizarding Bank on 1 May, 1998, during the height of the Second Wi... |
Darun Akta Counter Moeen lives in a home section or blocks with 100 floors numbered from 0 to 99. The home has an eleva...
Moderate
6/9/15 |
Lowercase or Uppercase You are given a string S consisting of lowercase English letters (a, b, c ….. z), uppercase English ... |
Chemical Reaction II The simulation of chemical reactions are always complex. Professor X has devoted himself to studying... |
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
