World War

CodeChefOpen on judge ↗

It's war time guys. All the countries have prepared themselves for the war. Countries have made alliance with other countries for lending weapons if required. Alliance between two countries is not both way. That means if country 'A' have their alliance with country 'B', then it is not necessary that 'B' will certainly have alliance with 'A'. Given names of n countries, and m alliances between the

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