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halfrosthalfrost
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Add Biweekly 40
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‎leetcode/5560.Design-Front-Middle-Back-Queue/5560. Design Front Middle Back Queue.go‎

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package leetcode
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type FrontMiddleBackQueue struct {
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Queue []int
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Length int
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}
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func Constructor() FrontMiddleBackQueue {
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return FrontMiddleBackQueue{Queue: make([]int, 0), Length: 0}
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}
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func (this *FrontMiddleBackQueue) PushFront(val int) {
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tmp := make([]int, this.Length+1)
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copy(tmp[1:], this.Queue)
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tmp[0] = val
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this.Queue = tmp
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this.Length++
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}
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func (this *FrontMiddleBackQueue) PushMiddle(val int) {
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tmp := make([]int, this.Length+1)
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idx := this.Length / 2
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copy(tmp[:idx], this.Queue[:idx])
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tmp[idx] = val
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copy(tmp[idx+1:], this.Queue[idx:])
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this.Queue = tmp
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this.Length++
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}
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func (this *FrontMiddleBackQueue) PushBack(val int) {
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this.Queue = append(this.Queue, val)
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this.Length++
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}
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func (this *FrontMiddleBackQueue) PopFront() int {
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if this.Length == 0 {
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return -1
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}
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res := this.Queue[0]
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this.Queue = this.Queue[1:]
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this.Length--
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return res
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}
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func (this *FrontMiddleBackQueue) PopMiddle() int {
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if this.Length == 0 {
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return -1
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}
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mid := (this.Length - 1) / 2
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res := this.Queue[mid]
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tmp := make([]int, len(this.Queue)-1)
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copy(tmp[:mid], this.Queue[:mid])
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copy(tmp[mid:], this.Queue[mid+1:])
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this.Queue = tmp
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this.Length--
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return res
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}
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func (this *FrontMiddleBackQueue) PopBack() int {
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if this.Length == 0 {
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return -1
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}
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res := this.Queue[this.Length-1]
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this.Queue = this.Queue[:this.Length-1]
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this.Length--
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return res
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}
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/**
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* Your FrontMiddleBackQueue object will be instantiated and called as such:
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* obj := Constructor();
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* obj.PushFront(val);
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* obj.PushMiddle(val);
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* obj.PushBack(val);
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* param_4 := obj.PopFront();
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* param_5 := obj.PopMiddle();
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* param_6 := obj.PopBack();
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*/

‎leetcode/5560.Design-Front-Middle-Back-Queue/5560. Design Front Middle Back Queue_test.go‎

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package leetcode
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import (
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"fmt"
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"testing"
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)
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func Test_Problem707(t *testing.T) {
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obj := Constructor()
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushFront(1)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushBack(2)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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obj.PushMiddle(3)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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obj.PushMiddle(4)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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param1 := obj.PopFront()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopBack()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopFront()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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fmt.Printf("-----------------------------------------------------------------\n")
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obj = Constructor()
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushFront(1)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushFront(2)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushFront(3)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushFront(4)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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param1 = obj.PopBack()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopBack()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopBack()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopBack()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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fmt.Printf("-----------------------------------------------------------------\n")
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obj = Constructor()
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushMiddle(1)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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obj.PushMiddle(2)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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obj.PushMiddle(3)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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fmt.Printf("-----------------------------------------------------------------\n")
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obj = Constructor()
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushMiddle(8)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopFront()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopBack()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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obj.PushMiddle(1)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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obj.PushMiddle(10)
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fmt.Printf("obj = %v\n", MList2Ints(&obj))
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fmt.Printf("-----------------------------------------------------------------\n")
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obj = Constructor()
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v\n", param1, MList2Ints(&obj))
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obj.PushMiddle(3)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushFront(6)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushMiddle(6)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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obj.PushMiddle(3)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v %v\n", param1, MList2Ints(&obj), obj)
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obj.PushMiddle(7)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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param1 = obj.PopMiddle()
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fmt.Printf("param1 = %v obj = %v %v\n", param1, MList2Ints(&obj), obj)
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obj.PushMiddle(8)
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fmt.Printf("obj = %v %v\n", MList2Ints(&obj), obj)
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// ["FrontMiddleBackQueue","popMiddle","pushMiddle","pushFront","pushMiddle","pushMiddle","popMiddle","pushMiddle","popMiddle","pushMiddle"]
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// [[],[],[3],[6],[6],[3],[],[7],[],[8]]
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}
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func MList2Ints(head *FrontMiddleBackQueue) []int {
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return head.Queue
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}

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