Your Dashboard
Interview Coaching
Learn
System Design
ML System Design
Code
Behavioral
Salary Negotiation
Interview Guides
Search
⌘K
Get Premium
Leetcode 898. Bitwise ORs of Subarrays
Count how many distinct integers appear as the bitwise OR of any non-empty contiguous subarray of arr. Key insight: bitwise OR only accumulates bits so the number of distinct ORs ending at each position is bounded (≈bit-width of numbers), allowing an efficient iterative set-based accumulation for n up to 5·10^4 and values ≤ 10^9.
Question Timeline
See when this question was last asked and where, including any notes left by other candidates.
All Regions
Comments
Hello Interview Premium
Your account is free and you can post anonymously if you choose.