JEC AND THE LIGHTS

CodeChefOpen on judge ↗

Some students leave the lights on when they leave the college which is a waste of resource. As a hauswart of JEC, Sandeep waits till all students leave the building, then goes and turns all the lights off. The building consists of n floors with stairs at the left and the right sides. Each floor has m rooms on the same line with a corridor that connects the left and right stairs passing by all t

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