F - Easy Counting Problem

CodeChefOpen on judge ↗

*Did I just copy a problem from Kanpur regionals and ask you to solve it again? Yes, I did. Sue me.* Alice had an array $A$ of $N$ elements, but for no reason whatsoever, a monster has started attacking the array. (Why? How? We don't know either!) The monster does not like fixed indices (where a fixed index means that $A_i = i$). Thus, every second starting from $1$, the monster deletes the **ma

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