Hashing Problems

Chikongunia is an epidemic in Dhaka right now. Many people are affected by this. But the problem is,...

ridowan007 Hashing Moderate 126/190/2k

Prof. Ying Zang has an affinity for symmetric objects. Perhaps that is why she loves palindromes. So...

forthright48 Hashing Moderate 109/161/939

Shikamaru is the most brilliant student of his class. He is very good at Mathematics. Mr. Asuma is t...

fsshakkhor Hashing, MOSAlgorithm, NumberTheory Hard 58/123/641

Well, I will not waste your time and go straight to the problem. You are given an array A of numbers...

IamHot Hashing Moderate 17/31/146

In a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ...

ghazanfar Counting, DP, Hashing, String Hard 41/60/142

You will be given a string s of length n. Consider substring s[i, n] (where i is the starting positi...

emrul_mu Hashing, SuffixStructure Hard 22/28/121

You are given a string of length L. You have Q queries. In each query, you will be asked to either u...

tahmedge, IamHot DataStructure, Hashing, SegmentTree Hard 13/30/124

The king of Stringland is employing an elite force of undercover agents to protect the kingdom from ...

SMAN2901 BinarySearch, Eertree, Hashing, SuffixStructure Moderate 23/25/133

In Strangeland, people name their child in a cute way. I'm sure you already know the way by the prob...

skmonir BruteForce, Hashing, KnuthMorrisPratt, String Hard 49/114/377

You are given two connected graphs G1G_1G1​ and G2G_2G2​. Both of the graphs have NNN vertices and N...

fsshakkhor Hashing, KnuthMorrisPratt Hard 14/33/113

We heard you like trees. But this problem has no relation to trees being frozen. :D You are given a ...

souravvv DisjointSets, Hashing Hard 17/21/131

Palindrome is a string which reads the same from both right to left and left to right. Formally, a s...

Mohaimin66 Eertree, Hashing Moderate 25/30/153

Bob is the owner of a shop named "Color Maker". He has 256 types of watercolor in his shop...

shefin BinarySearch, Hashing Hard 16/21/201

You’ll be given two matrix M1 and M2 and another integer K. The size of both M1 and M2 are N*N and e...

flash_7 Bitmask, Hashing Hard 47/66/312

Tony works in a multinational technology company named Voogle LLC. The employees of Voogle follow ce...

akash.kuet DP, Hashing, Implementation Hard 40/94/349

Asfia's daughter just turned 5. She is looking for a school to get her admitted. Like every other pa...

ishtupeed Hashing, Math Moderate 55/75/274

There is a kingdom called DomKi. DomKi has N city and N-1 two-way road. Each city is numbered with 1...

prodip_bsmrstu Bitmask, DataStructure, Hashing, LowestCommonAncestor, Tree Hard 6/10/43

You will be given an array of integers AAA. You have to count the number of subarrays\textbf{subarra...

Hasinur_ Hashing Hard 31/50/244

You all remember Fabby, the princess of Byteland. People of Byteland are waiting for the biggest cel...

Hasinur_ Hashing, Trie Hard 11/18/257