Modular Enigma

CodeChefOpen on judge ↗

Alice and Bob are a paranoic couple who wants to hold a remote conversation using a chat client. However, they do not like the existent ones (e.g. gtalk, MSN, Facebook chat, etc.), as they think that there might be hidden backdoors in them that allows spies to read their conversations about their never ending love. Last week, they decided to build their unique chat client, called ABmod, which wil

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