← All problemsSign in

Unreasonable Updates

CodeChefRating 3048Open on judge ↗

Given an array $A$ of length $N$, you have to perform $Q$ queries on it. There are three different type of queries: - $1$ $L$ $R$ - For every $i$ such that $L \le i \le R$ and $A_i \gt 0$, replace $A_i$ with $A_i$ $|$ $(A_i-1)$. - $2$ $L$ $R$ - For every $i$ such that $L \le i \le R$ and $A_i \gt 0$, replace $A_i$ with $A_i$ $\&$ $(A_i-1)$. - $3$ $x$ - Print $A_x$. Output the answer to each qu

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

Sign in to chat with the tutor and save your progress.

Sign in to start