Hasan the Treasure Hunter
Benjamin Gates the treasure hunter opened a coaching center named Khajna Dibo Na where he teaches hi...
Ajob Commute II
Once again we return to Ajobshohor, the capital city and the heart of Ajobdesh. Ajobshohor’s road sy...
Static Tree
You are given a tree containing N vertices. The vertices are numbered from 1 to N. A tree with N ver...
Magical Tree Query
You are given a rooted tree (a connected graph with no cycles) with n vertices. The vertices are num...
Race in DomKi
There is a kingdom called DomKi. DomKi has N city and N-1 two-way road. Each city is numbered with 1...
Yet Another XOR Tree Problem
You are given a tree with N nodes. A non-negative weight is assigned to each edge of the tree. Let’s...
Cheap Tourist
The country of Byteland is divided into N provinces numbered from 1 to N. The provinces are connecte...
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