Tree Problems

Recently the government of country S is going to construct some police stations(possibly zero) in so...

• By sohel_sec
• DP, Tree
• Moderate
• 0/1 Solutions
• 1 Submission

You know how to play hide-and-seek, right? In a group of kids, one of them is selected to be the see...

• By peppermint
• BFS, DFS, DataStructure, Tree
• Moderate
• 18/21 Solutions
• 55 Submissions

"Stay at least one metre distance from others.” Corona has affected the World as well as Banglad...

• By RamprosadG
• DFS, Graph, Tree
• Moderate
• 9/11 Solutions
• 37 Submissions

You are given an acyclic, bidirectional graph with N nodes and M edges. The nodes are numbered from ...

• By RamprosadG
• Combinatorics, Graph, Tree
• Moderate
• 21/26 Solutions
• 80 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
• Moderate
• 4/8 Solutions
• 29 Submissions