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package main
type Node struct {
Circular bool
}
type ExtNode[V any] struct {
v V
Node
}
type List[V any] struct {
root *ExtNode[V]
len int
}
func (list *List[V]) PushBack(arg V) {
if list.len == 0 {
list.root = &ExtNode[V]{v: arg}
list.root.Circular = true
list.len++
return
}
list.len++
}
func main() {
var v List[int]
v.PushBack(1)
}
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