Alliances

CodeChefOpen on judge ↗

Treeland is a country consisting of N cities numbered from 1 to N. The road network connecting these cities has tree structure, i.e. there is exactly one way of going from a city to another city via a path of roads. There are K gangs living in the city, numbered from 1 to K. Gangs operate over various cities, engaging in illicit trades. There might be more than one gangs operating in some citie

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