33 lines
655 B
Go
33 lines
655 B
Go
// Package q228 implements a solution for https://leetcode.com/problems/summary-ranges/
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package q228
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import (
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"fmt"
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"strconv"
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)
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func addToRanges(output []string, a, b int) []string {
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if a == b {
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return append(output, strconv.FormatInt(int64(a), 10))
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}
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return append(output, fmt.Sprintf("%d->%d", a, b))
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}
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func summaryRanges(nums []int) []string {
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if len(nums) == 0 {
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return nil
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}
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output := []string{}
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l := 0
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for r := 1; r < len(nums); r++ {
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if nums[r]-nums[r-1] != 1 {
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output = addToRanges(output, nums[l], nums[r-1])
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l = r
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}
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}
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output = addToRanges(output, nums[l], nums[len(nums)-1])
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return output
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}
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var _ = summaryRanges
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