Problems
Alien Neural Network The great researcher Dr. Bari loves to do research. He recently discovered a parallel universe. Now ... |
Aliens 19 February 2020, Unidentified flying object (UFO) has captured student’s attention on top of the CS... |
Alligator Sky There are N balls in a box. You have two robots Alice and Bob. You will set favorite number for each... |
All In One Grid Ryana, Fardin, and Bithi are best friends. One day, they were playing with dominos and a grid. Ryana... |
All the Cuts In a two dimensional plane, there are “R” red points, “B” blue points and “G” green points. These po... 
Moderate
4/4/9 |
Alone in the Multiverse Instead of restoring Peter's previous life, Doctor Strange's botched spell attracted enemies and oth... |
Aloyna and Can Buying Aloyna is a can lover girl and whenever she goes to a shop, she must buy a can to drink. This time s... |
Alphabet Animals You are playing a game in which a group of players take turns saying animal names. The animal name y... |
Alphabets Puzzle Wassi and Tahseen are two young brothers who are just learning the English alphabets, still the uppe... |
Alter ___________________________________________________________________ the solution is yet to be found ... |
Alternative Subsequence: The Extension Recall that the sequence b is a subsequence of the sequence a, if b can be derived from a by removin... |
Amicable Numbers From Wikipedia: “Amicable numbers are two different numbers so related that the sum of the proper di... |
A Moment of Happiness Solving a problem during a programming contest is always a moment of happiness. During the CUET CSE ... |
Amusement Park One of Tommy’s family members is planning a trip to an amusement park, and Tommy is interested in ca... |
An Act of Uniformly Random Kindness After selling all the bitcoins that you bought back in 2010, you now find yourself with a huge amoun... |
An Arithmetic Problem A sequence is an arithmetic sequence if every two successive number has same difference. Suppose thi... |
AND Maximum Spanning Tree You have a weighted undirected complete graph of $N$ nodes numbered from $0$ to $N-1$. The weight of... |
And... Yet Another AND Problem YouKn0wWho has an integer n. He wants to find an integer sequence a of size exactly 2n such that 0≤a... |
A New Tough Game We are introducing a new game in Toph. And, by participating in IUT ICT Fest 2019, you have become o... |
A New Tree Bob had N isolated nodes. He decided to connect the nodes by creating new edges and make a tree. So ... |
Angels and Demons You are walking at midnight along a road that has N checkpoints numbered from 1 to N from left to ri... |
Angle of Polygon Nusrat is a brilliant student. She is good at all subjects but only get confused with geometry. Toda... |
Angles!!! ABCD is a convex quadrilateral. E, F, G, H are the midpoints of AB, BC, CD and DA respectively. EP a... |
Angry Mamu We all little brothers of Sohel vai are now gathered in a party at his home. “Mamu”, the most popula... |
Angry Talha Talha is a very good student and topper of his class. He is very good at teaching others too. One da... |
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
