Swap and Explore

CodeChefOpen on judge ↗

Rob likes to explore but is lazy. He has many cubes arranged before him in a line. Each cube has either the letter 'A' or 'B' inscribed on it. Now Rob wants to swap any two positions of cubes placed on the line, such that the there exists a sequence of continuous cubes with letter 'A' inscribed on them, whose number is greater than or equal to M. However, mechanically swapping cubes is a tediou

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