Problems
Prime String We know that a prime number is a number that is divisible only by itself and $1$ (e.g. $2, 3, 5, 7, ... |
Help Dr. Wu Dr. Wu is going to organize a competition. He has decided to judge the participants using an automat... |
Holy Day Maruf is a student of Dept. of Computer Science & Engineering, Sylhet Polytechnic Institute. Right n... 
Moderate
39/40/42 |
Bored in Box After becoming a demon, Nejuko can’t go out in the sunlight. Most of the daytime she stays in a box.... |
East(West)er Eggs It is time for the annual East(West)er Egg festival, where children across the country decorate thei... |
Battle With GCD Once upon a time, in a bustling metropolis, Ava, a brilliant AI researcher, was dedicated to creatin... |
Chikongunia Chikongunia is an epidemic in Dhaka right now. Many people are affected by this. But the problem is,... |
Fancy Phone Numbers A phone number is fancy if any one of the following conditions is satisfied: At least 4 consecutiv... |
Scripting Machine Nahid has his own printing press, “Desher Khobor” . He feels that words on their own simply aren't b... |
Python Interpreter Sudipa is learning to code in Python 3 and her best friend Sutapa is teaching her a few things every... |
The Third Problem This is the third problem of today’s contest. In this problem you will be given a list of numbers. Y...
Moderate
407/424/712 |
A Very Tough Problem Now-a-days life is very Toph and you need to face a lot of Toph problems. Here is another problem li... |
Rio and Inversion One day Rio was returning home from his university and unfortunately lost his phone on the way. He a... |
Oh No! Classes! You will be given three pairs of integers, which denotes the starting and ending time in seconds of ... |
Subset AND You are given an array A of n integers and an integer k. You need to find if there is any non-empty ... |
Find LCM The Least Common Multiple of two integers a and b is the smallest integer x, such that x is divided ... |
Jewel the Magician Jewel is a promising magician. Recently, he has learned a technique to mesmerize his audience. Let's... |
Spanning Tree There are N nodes in a tree. You can start from any node of that tree and you have to come back to t... |
BigNumSum You will be given two numbers of 40 digits each. You will have to print the summation of these two n... |
Cheers !! Isabella is from the 19 series of RUET. She loves programming. Also, She considers a number lucky fo... |
Nearest Co-Prime Two numbers are relatively prime or co-prime if their greatest common divisor is 1. In this problem,... |
Penguins of Madagascar One day the penguins of Madagascar found a string S... Wait... Wait. Actually the setter of the prob... |
The Easiest Problem Tareq Abrar is a lazy programmer. He has a friend named Aminvai, who is famous for his amazing skill... |
Straightforward No gossip. In this problem I will just say what to do. Initially, you will be given a bracket sequen... |
Calculus Helper Everybody knows that engineering students have to do lots of math. As a student of a renowned engine... |
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
