Construct the Minimum Bitwise Array II
A medium-tier problem at 35% community acceptance, tagged with Array, Bit Manipulation. Reported in interviews at Aon and 0 others.
Construct the Minimum Bitwise Array II is a medium-difficulty array and bit manipulation problem that's reported from Aon. With a 34.86% acceptance rate, it's harder than it looks at first glance. The trick isn't obvious on read-through, and most candidates either over-engineer a brute-force search or miss the bitwise pattern entirely. You'll need to construct an array with specific bitwise constraints, and the naive approach will time out. If this shows up on your OA and you hit a wall, StealthCoder surfaces the working solution in seconds, invisible to the proctor.
Companies that ask "Construct the Minimum Bitwise Array II"
Construct the Minimum Bitwise Array II is the kind of problem that decides whether you pass. StealthCoder reads the problem on screen and surfaces a working solution in under 2 seconds. Invisible to screen share. The proctor sees nothing. Made for the engineer who has done the work but might still blank with a webcam pointed at him.
Get StealthCoderThe core challenge here is recognizing that you can't just try every possible value and check constraints. The bitwise relationships are the key. Most people start greedy or iterative, but the problem requires understanding how bit operations compose and which values actually satisfy the constraints. You're likely building from left to right with some constraint propagation, or using properties of AND, OR, or XOR to prune the search space. The gotcha is realizing when a greedy pick breaks future positions, forcing backtracking or a smarter scan. Bit Manipulation problems at this acceptance rate often hide a small insight that collapses the complexity. If you haven't drilled bitwise array construction before, that pattern won't click under pressure. StealthCoder hedges that gap by running invisibly during your assessment and giving you a reference solution the moment you need it.
Pattern tags
You know the problem.
Make sure you actually pass it.
Construct the Minimum Bitwise Array II recycles across companies for a reason. It's medium-tier, and most candidates blank under the timer. StealthCoder is the hedge: an AI overlay invisible during screen share. It reads the problem and surfaces a working solution in under 2 seconds. Made for the engineer who has done the work but might still blank with a webcam pointed at him. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Construct the Minimum Bitwise Array II interview FAQ
Is this an easy disguised as medium, or actually hard?+
At 34.86% acceptance, it's genuinely medium-plus. The problem statement likely reads simple, but the bitwise constraint logic and construction order are non-obvious. Most candidates fail on the first attempt because they miss the pattern.
What's the main pitfall?+
Trying brute-force or greedy without understanding the bitwise relationships first. You'll either time out or construct an invalid array. The trick is recognizing which bit operations let you skip impossible candidates and build forward efficiently.
Is this still asked by Aon and similar companies?+
Aon is the primary reporter on file. It's a solid mid-tier screening question. You should expect it or problems with similar bitwise array logic if you interview with them.
How does Bit Manipulation fit into the solution?+
Bit operations are the constraint language. You're likely using AND, OR, or XOR to define valid elements, then constructing the array by testing which values satisfy all bitwise rules. Missing this angle means you're solving blind.
Can I solve this without a deep bitwise background?+
Possibly, but the clock is running during the OA. If you're not fluent in bit logic, you'll spend time reverse-engineering the pattern instead of coding. StealthCoder gives you that working reference in real time if you blank.
Want the actual problem statement? View "Construct the Minimum Bitwise Array II" on LeetCode →