First of Regex

CodeChefOpen on judge ↗

A regular expression is a sequence of characters along with some special symbols that define a specific search pattern. In a regular expression, we shall use only lower case English characters to represent any string pattern. The special symbols used in our version of the regular expression are *,|,() and # and their meanings are as follows: - * - Any number of repetitions (including no repetition

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