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28 lines
453 B
Go
28 lines
453 B
Go
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package utils
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type StringStack struct {
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stack []string
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}
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func (self *StringStack) Push(s string) {
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self.stack = append(self.stack, s)
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}
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func (self *StringStack) Pop() string {
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if len(self.stack) == 0 {
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return ""
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}
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n := len(self.stack) - 1
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last := self.stack[n]
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self.stack = self.stack[:n]
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return last
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}
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func (self *StringStack) IsEmpty() bool {
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return len(self.stack) == 0
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}
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func (self *StringStack) Clear() {
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self.stack = []string{}
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}
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