The Cards Machine

CodeChefRating 2992Open on judge ↗

You have a deck of $N$ cards and a cards machine. The $i$-th card from the top has a number $A_i$ written on it. You and your opponent will play a game with the following steps: - Step 1: Your opponent removes some (possibly zero, but not all) cards from the **top** of the deck. - Step 2: Your opponent removes some (possibly zero, but not all) cards from the **bottom** of the **remaining** deck.

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