MetaCoding·40 minMembers
Longest Consecutive Sequence
Members only
LeetCode 128. Find the length of the longest consecutive-integer subsequence in an unsorted array. The trick is the O(n) hashset solution that only expands from sequence-starts.
SWE
MLE
array
hashmap
set
medium
Frequency
Low
Last asked
2026-03-17
Stage
phone-screen · onsite-coding
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