Hashing Problems

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

• By ridowan007
• Hashing
• Moderate
• 116/177 Solutions
• 1587 Submissions

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

• By forthright48
• Hashing
• Moderate
• 100/150 Solutions
• 897 Submissions

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

• By fsshakkhor
• Hashing, MOSAlgorithm, NumberTheory
• Moderate
• 53/115 Solutions
• 603 Submissions

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

• By IamHot
• Hashing
• Moderate
• 14/28 Solutions
• 132 Submissions

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

• By ghazanfar
• Counting, DP, Hashing, String
• Moderate
• 28/44 Solutions
• 98 Submissions

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

• By emrul_mu
• Hashing, SuffixStructure
• Moderate
• 22/28 Solutions
• 121 Submissions

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

• By tahmedge, IamHot
• DataStructure, Hashing, SegmentTree
• Moderate
• 9/22 Solutions
• 89 Submissions

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

• By SMAN2901
• Eertree, Hashing, SuffixStructure
• Moderate
• 18/20 Solutions
• 115 Submissions

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

• By skmonir
• BruteForce, Hashing, KnuthMorrisPratt, String
• Moderate
• 38/82 Solutions
• 249 Submissions

You are given two connected graphs G_1 and G_2. Both of the graphs have N vertices and N number of e...

• By fsshakkhor
• Hashing, KnuthMorrisPratt
• Moderate
• 14/33 Solutions
• 113 Submissions

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

• By souravvv
• DisjointSets, Hashing
• Moderate
• 17/21 Solutions
• 131 Submissions

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

• By shefin
• BinarySearch, Hashing
• Moderate
• 12/17 Solutions
• 148 Submissions

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...

• By flash_7
• Bitmask, Hashing
• Moderate
• 45/64 Solutions
• 286 Submissions

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

• By akash.kuet
• DP, Hashing, Implementation
• Moderate
• 38/91 Solutions
• 327 Submissions

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

• By ishtupeed
• Hashing, Math
• Moderate
• 54/74 Solutions
• 273 Submissions

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

• By prodip_bsmrstu
• Bitmask, DataStructure, Hashing, LowestCommonAncestor, Tree
• 4/8 Solutions
• 29 Submissions

You will be given an array of integers A. You have to count the number of \textbf{subarrays} (a non-...

• By Hasinur_
• Hashing
• Moderate
• 27/46 Solutions
• 222 Submissions

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

• By Hasinur_
• Hashing, Trie
• Moderate
• 8/14 Solutions
• 158 Submissions