40 lines
733 B
Go
40 lines
733 B
Go
package main
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import (
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"fmt"
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"container/list"
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)
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func main() {
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q := list.New()
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fmt.Println("empty?", q.Len() == 0)
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x := "black"
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fmt.Println("push", x)
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q.PushBack(x)
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fmt.Println("empty?", q.Len() == 0)
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if e := q.Front(); e != nil {
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r := q.Remove(e)
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fmt.Println(r, "popped")
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} else {
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fmt.Println("pop failed")
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}
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var n int
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for _, x := range []string{"blue", "red", "green"} {
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fmt.Println("pushing", x)
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q.PushBack(x)
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n++
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}
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for i := 0; i < n; i++ {
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if e := q.Front(); e != nil {
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r := q.Remove(e)
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fmt.Println(r, "popped")
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} else {
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fmt.Println("pop failed")
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}
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}
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}
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