func (l *List) PushBackSlice(s []int) {
	for _, v := range s {
		l.PushBack(v)
	}
}
//PushBackSlice inserts a slice at the back of list l.

PushBackSlice inserts a slice at the back of list l.
// PushBackSlice inserts a slice at the back of list l .
func (l *List) PushBackSlice(s []int) {
	for _, v := range s {
		l.PushBack(v)
	}
}
func ( l * List ) PushBackSlice ( s [ ] int ) { for _ , v := range s { l . PushBack ( v ) } }
PushBackSlice inserts a slice at the back of list l.
PushBackSlice inserts a slice at the back of list l .