Withdrawing Balls

CodeChefOpen on judge ↗

You are given a bag full of 2N balls of which N balls are black in colour and N are white. All the balls of same colour are identical to each other. You are given the task to withdraw all the balls one by one until the bag gets empty. Now, you have always liked black colour over white. So, being a nerd, you want to withdraw the balls in such a way that at any point you don't want the number of wh

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