28 lines
500 B
Go
28 lines
500 B
Go
// Package q128 implements a solution for https://leetcode.com/problems/longest-consecutive-sequence/
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package q128
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func longestConsecutive(nums []int) int {
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set := make(map[int]struct{}, len(nums))
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for _, n := range nums {
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set[n] = struct{}{}
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}
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longest := 0
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for n := range set {
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if _, ok := set[n-1]; ok {
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continue
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}
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r := n
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for {
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if _, ok := set[r+1]; ok {
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r++
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} else {
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break
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}
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}
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longest = max(longest, r-n+1)
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}
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return longest
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}
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var _ = longestConsecutive
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