Path Triples On Tree

CodeChefRating 2954Open on judge ↗

Chef is given a tree of N nodes. Let M denote the number of simple paths with at least two nodes. Notice that M = N * (N - 1) / 2. There are (M * (M - 1) * (M - 2) / 6) unordered triples of such paths. Your task is to count how many of them are nice. A triple of paths (A, B, C) is nice if and only if either of the following conditions is satisfied: - The three paths are pairwise disjoint (no

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