33 lines
559 B
Go
33 lines
559 B
Go
// Package q71 implements a solution for https://leetcode.com/problems/simplify-path/
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package q71
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import "strings"
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func simplifyPath(path string) string {
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b := strings.Builder{}
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fields := strings.FieldsFunc(path, func(r rune) bool { return r == '/' })
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p := 0
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for i := range fields {
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switch fields[i] {
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case ".":
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continue
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case "..":
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p = max(p-1, 0)
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default:
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fields[p] = fields[i]
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p++
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}
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}
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for i := range p {
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b.WriteByte('/')
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b.WriteString(fields[i])
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}
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if p == 0 {
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return "/"
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}
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return b.String()
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}
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var _ = simplifyPath
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