Prefix Tree Problems

Hasinur studies at X School & College situated in Chittagong. AA Sir is one of the toughest and ...

• By Shahwat_Has9
• Trie
• Hard
• 33/74 Solutions
• 284 Submissions

You are given an array A of n integers (A1, A2 , ... , An) and some queries. In each query, you will...

• By nahidhasan98
• Bitmask, Trie
• Hard
• 40/55 Solutions
• 161 Submissions

The new year 2017 is here. To celebrate the 31st night, Mr Rio has thrown a big party at his house. ...

• By flash_7
• DataStructure, String, Trie
• Moderate
• 16/24 Solutions
• 149 Submissions

Robin is using a peculiar text editor to write a sequence of lines of text. The editor consists of t...

• By tahmedge
• Trie
• Moderate
• 19/27 Solutions
• 61 Submissions

Given a rooted tree with N nodes where each node has a value, find a pair of nodes (u, v) so that u ...

• By farhanhasin
• DFS, DisjointSets, Trie
• Hard
• 27/41 Solutions
• 166 Submissions

This time I'm going to introduce you to a new land, called String Land. In String Land there are N ...

• By prodip_bsmrstu
• DataStructure, Trie
• Hard
• 6/9 Solutions
• 32 Submissions

Akash is one of the finest programmers of AUST. His closest senior Shuvro asked him if he can solve ...

• By error26
• Trie
• Hard
• 18/25 Solutions
• 98 Submissions

Your team has been tasked to build a section of a web app where users can choose whether and how the...

• Implementation, Trie
• Moderate
• 19/25 Solutions
• 46 Submissions

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

• By Hasinur_
• Hashing, Trie
• Moderate
• 10/16 Solutions
• 240 Submissions