Software Engineer · Online Assessment · Coding

Meta — Software Engineer ❌ Failed

Level: Unknown Level

Round: Online Assessment · Type: Coding · Difficulty: 5/10 · Duration: 60 min · Interviewer: Neutral

Topics: Arrays, Algorithms

Location: San Francisco Bay Area

Interview date: 2026-03-13

Got offer: False

Summary

I completed an online assessment with four coding questions of moderate difficulty.

Details

I received an online assessment after applying. The assessment was on CodeSignal and consisted of four questions:

1. Given an array and a pivot, calculate the number of elements greater than and less than the pivot. Return '>', '<', or '=' based on the relationship between the counts.
2. Given a non-negative array:
   • Find the leftmost non-zero index i, let array[i] = x.
   • Starting from this number, subtract x from each element.
   • If an element becomes less than x, jump to step C.
   • Otherwise, after subtracting x, continue to the next element.
   • Upon reaching the end of the array, jump to step C.
   • Add x to the final result.
   • Go back to step A.
3. Given memory containing 0s and 1s, where 0 represents free and 1 represents occupied. Memory blocks must start at integer multiples of 8:
   • alloc x: Starting from the leftmost block, find x consecutive 0s and change them to 1s.
   • erase ID: Find the memory block corresponding to the ID and delete the block.
4. Find the pair of mountain peaks with the smallest height difference, considering a view gap where only peaks at least viewGap distance apart are visible.