Crazy texting

CodeChefOpen on judge ↗

You must be familiar with the use of numeric keys to enter alphabets in mobile phones. A single numeric key when pressed gives a character. When pressed again, it changes to another and so on. Once the set of characters mapped to the key is exhausted, the key wraps around to the original character. The key mapping in this problem is the T9 mapping, restricted to lowercase english characters. 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