Problems
Itsy's Triangles Itsy went for a walk and found several sticks in the park. She is wondering how many of these sticks... 
Moderate
107/149/290 |
Special Triplets You will be given an integer X. You have to print any three integers greater than 0 and lesser than ...
Very Easy
466/517/1k |
Print the Words Given a blob of text you will have to determine the following statistics about it: The longest wor...
Moderate
57/98/320 |
PotatoDB v1.0 You are building a new database software: PotatoDB. PotatoDB is meant to store numbers and handle th... |
Same Parity Split A tree is a connected graph without a cycle. Given an undirected tree with n nodes labeled from 1 to... |
Enemy Charlie Alice and Bob have stopped playing games. They became friends again. They both agreed that M is thei... |
Yet Another XOR Problem You are given an integer array a of size n. You need to select an integer K(0≤K<231) and perform the... |
Lazy Division You are given an array a of length n. You have to perform the following operation on the array q tim... |
Distinct Numbers This is an Interactive Problem. The judge has a secret array A of size n. You can ask the judge at m... |
Luffy Will Become the Pirate King Whitebeard is testing Luffy to see if he can become the Pirate King. Whitebeard has given Luffy thre... |
Least Complicated Mind You are given an array A of N positive integers. You can do the following operation any number of ti... |
Tour De Chittagong The city of Chittagong can be considered a weighted directed acyclic graph (DAG) of n nodes and m ed... |
A Moment of Happiness Solving a problem during a programming contest is always a moment of happiness. During the CUET CSE ... |
Hotel Royal Datta, the great politician, loves parties. He takes all the big shots with him to the most famous r...
Moderate
47/61/149 |
War of Programmers Jackal and Bari have started solving problems in Online Judges. And in order to do well, they know t...
Very Easy
86/104/209 |
Coin Collection (Easy) Neema and Mouri loves to collect coins. When they get bored, they bring out all of their coins. Usua...
Easy
48/73/254 |
Coin Collection Neema and Mouri loves to collect coins. When they get bored, they bring out all of their coins. Usua... |
Bridge Puzzle There's a famous bridge puzzle, where you have four persons, each with a unique time required to cro... |
Counter Attack Alice and Bob played Nim for a long time and now they are pissed off after exploring the property of...
Moderate
5/22/57 |
Special Friends of Two Let's consider two positive numbers X and Y to be friends if - X and Y have same length and differ ...
Moderate
4/10/42 |
Batman vs. Ghul I think you all know the name of Gotham city. Our hero Batman lives there. But a demon called Ra's a...
Moderate
15/38/122 |
Take It Easy This is a very simple problem. You will be given a single integer n. You have to print four numbers ... |
Hello Regexp Write a regular expression that will match texts like “Hello {X}” and only output “{X}” (w/o quotes)... |
In Brackets Given a line of text, you have to extract the bit of text enclosed within a pair of brackets. There ... |
Closest Pair You will be given N pair of coordinates on a 2D space. You will determine distance between the close... |
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
