← All problemsSign in

Cycle Length

Tree is connected acyclic graph. Adding an edge in tree creates a cycle. You are given a tree with n number of vertices and k queries. Each query consists of two numbers a and b. For each query you have to output length of cycle that will be introduced when an edge between vertices a and b is inserted in the tree. It is guaranteed that a and b will not be adjacent in tree. Limits : n Input: Firs

HINT LADDERno hints yet
L1 Observation
L2 Technique
L3 Approach
L4 Pseudo-code
🔒
L5 Full solution
L5 unlocks only if you insist twice
solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI

Sign in to chat with the tutor and save your progress.

Sign in to start