Counting Subtrees

CodeChefOpen on judge ↗

A free subtree is defined as a connected subgraph with no cycles. Given a graph G on N vertices, output the number of free subtrees on N vertices in G. Input The first line contains a single integer T, which denotes the number of test cases. Each test case begins with a line containing two space separated integers N and M, where N and M are the number of vertices and the number of edges, respe

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