A Perfect Binary Tree A perfect binary tree is a binary tree in which all interior nodes have two children and all leaves ... |
Dynamic Tree You are given a tree containing N vertices. The vertices are numbered from 1 to N. A tree with N ver... |
Path Intersection Extended Do you remember the problem from ICPC Dhaka Regional 2018 named $Path$ $Intersection$ by Md. Imran B... |
Cheap Tourist The country of Byteland is divided into N provinces numbered from 1 to N. The provinces are connecte... |