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deque.go
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deque.go
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package ds
import (
"fmt"
)
type Deque struct {
data []interface{}
}
func MakeDeque() *Deque {
var d Deque
d.Init()
return &d
}
func (d *Deque) Init() {
d.data = make([]interface{}, 0)
}
func (d Deque) Empty() bool {
return len(d.data) == 0
}
func (d Deque) Size() int {
return len(d.data)
}
func (d Deque) Front() interface{} {
if d.Empty() {
return 0
}
return d.data[0]
}
func (d Deque) Back() interface{} {
return d.data[len(d.data)-1]
}
func (d *Deque) Push_Front(toAdd interface{}) {
newElem := make([]interface{}, 0)
newElem = append(newElem, toAdd)
d.data = append(newElem, d.data...)
}
func (d *Deque) Push_Back(toAdd interface{}) {
d.data = append(d.data, toAdd)
}
func (d *Deque) Pop_Front() interface{} {
toReturn := d.data[0]
d.data = d.data[1:]
return toReturn
}
func (d *Deque) Pop_Back() interface{} {
toReturn := d.data[len(d.data)-1]
d.data = d.data[0 : len(d.data)-1]
return toReturn
}
func (d Deque) Print() {
fmt.Println("Deque of size: ", len(d.data))
for x := 0; x < len(d.data); x++ {
fmt.Print(d.data[x], ", ")
}
fmt.Println("")
}