type IQueue interface {
Enqueue(val interface{}) //入队
Dequeue() (interface{}, bool) //出队
Empty() bool //队列是否为空
Len() int //队列长度
Cap() int //队列容量
Peek() (interface{}, bool) //取队首元素
ToList() []interface{} //转换成数组
}
package main
import (
"fmt"
"github.com/chentaihan/container/queue"
)
func main() {
queueTest() //普通队列测试
priorityQueueTest() //优先级队列测试
}
func queueTest() {
size := 2000
var q queue.IQueue = queue.NewQueue(size) //数组实现队列
//var q queue.IQueue = queue.NewQueueLink() //链表实现队列
for i := 0; i < size; i++ {
q.Enqueue(i)
}
if q.Len() != size {
fmt.Println("queue len error")
}
if q.Cap() != size {
fmt.Println("queue cap error,cap=", q.Cap())
}
value, isOK := q.Peek()
if isOK {
if value.(int) != 0 {
fmt.Println("queue peek error")
}
}
for i := 0; i < size; i++ {
q.Enqueue(i)
}
if q.Cap() != size*2 {
fmt.Println("queue cap error,cap=", q.Cap())
}
count := q.Len()
index := 0
for !q.Empty() {
q.Dequeue()
index++
}
if count != index {
fmt.Println(fmt.Sprintf("len = %v != count = %v", index, count))
}
for i := 0; i < size*8; i++ {
q.Enqueue(i)
}
if q.Cap() != size*8 {
fmt.Println(fmt.Sprintf("queue cap error,cap=%v,want cap=%v", q.Cap(), size*8))
}
}
type integer int
func (i integer) GetPriority() int {
return int(i)
}
func (i integer) GetHashCode() int {
return int(i)
}
func priorityQueueTest() {
count := 100
heap := queue.NewPriorityQueue(count)
for i := 0; i < count; i++ {
heap.Push(integer(i))
}
if !heap.Contains(integer(20)) {
fmt.Println("Contain error")
}
if !heap.Remove(integer(20)) {
fmt.Println("remove error")
}
heap.Push(integer(20))
for heap.Len() > 0 {
l := heap.Len()
val := heap.Pop()
if val.GetHashCode() != count-l {
fmt.Println("pop error", val.GetHashCode(), count-l)
}
}
for i := 0; i < count; i++ {
heap.Push(integer(i))
}
list := heap.GetArray()
fmt.Println(list)
heap.Pop()
list = heap.GetArray()
fmt.Println(list)
heap.Push(integer(20))
list = heap.GetArray()
fmt.Println(list)
for heap.Len() > 0 {
heap.Pop()
}
if !heap.Empty() {
fmt.Println("clear error")
}
heap.Clear()
if !heap.Empty() {
fmt.Println("clear error")
}
}
//栈接口
type IStack interface {
Push(x interface{}) //入栈
Pop() (interface{}, bool) //出栈
Top() (interface{}, bool) //栈顶元素
Empty() bool //栈是否为空
Len() int //栈元素个数
Cap() int //栈容量
}
package main
import (
"fmt"
"github.com/chentaihan/container/stack"
)
func main() {
var s stack.IStack = stack.NewStack(100)
//var s stack.IStack = stack.NewStackLink()
size := 10
for i := 0; i < size; i++ {
s.Push(i)
}
if s.Len() != size {
fmt.Println("len error")
}
fmt.Println("cap=", s.Cap())
for !s.Empty() {
if val, exist := s.Top(); exist {
fmt.Println(val)
}
s.Pop()
}
if s.Len() != 0 {
fmt.Println("empty error")
}
}
//数组接口
type IArray interface {
Add(val IObject) //添加元素
Get(index int) (IObject, bool) //根据下标获取元素
Index(val IObject) int //获取指定值对应的下标,不存在就返回-1
RemoveIndex(index int) (IObject, bool) //删除对应下标的元素
Remove(value IObject) int //删除指定的值
Len() int //元素个数
Clear() //删除所有元素
GetArray() []IObject //返回所有元素(不复制)
Copy() []IObject //复制所有元素
}
type IObject interface {
GetHashCode() int //按照这个函数排序
}
package main
import (
"fmt"
"github.com/chentaihan/container/array"
)
type integer int
func (i integer) GetHashCode() int {
return int(i)
}
func main() {
tests := []struct {
array []integer
result []integer
}{
{
[]integer{1, 3, 2, 4, 6, 5, 9, 8, 7},
[]integer{1, 2, 3, 4, 5, 6, 7, 8, 9},
},
}
for index, test := range tests {
as := array.NewArraySort(0)
for i := 0; i < len(test.array); i++ {
as.Add(test.array[i])
}
var result []array.IObject
for i := 0; i < len(test.result); i++ {
result = append(result, test.result[i])
}
list := as.GetArray()
if !IntEqual(list, result) {
fmt.Println(list, test.result)
fmt.Println("add error ", index)
}
as.Remove(integer(1))
}
}
func IntEqual(nums1, nums2 []array.IObject) bool {
if len(nums1) != len(nums2) {
return false
}
for i := 0; i < len(nums1); i++ {
if nums1[i].GetHashCode() != nums2[i].GetHashCode() {
return false
}
}
return true
}
//链表接口
type ILinkList interface {
PushFront(val interface{}) //首部添加元素
PushBack(val interface{}) //尾部添加元素
RemoveFront() (interface{}, bool) //删除首部元素,成功true,失败false
RemoveBack() (interface{}, bool) //删除尾部元素,成功true,失败false
RemoveValue(val interface{}) int ////删除指定值,返回被删除元素数量
Front() (interface{}, bool) //返回首部元素,存在true,不存在false
Back() (interface{}, bool) //返回尾部元素,存在true,不存在false
Len() int //元素个数
Exist(val interface{}) bool //指定元素是否存在
ToList() []interface{} //转换成数组
Clear() //删除所有元素
}
package main
import (
"fmt"
"github.com/chentaihan/container/link"
)
func main() {
list := link.NewLinkedList()
const count = 20
for i := 0; i < count; i++ {
list.PushBack(i)
}
if list.Len() != count {
fmt.Println("len error")
}
first, _ := list.Front()
if first != 0 {
fmt.Println("Front error")
}
last, _ := list.Back()
if last != count-1 {
fmt.Println("Back error")
}
list.RemoveFront()
first, _ = list.Front()
if first != 1 {
fmt.Println("Front error")
}
list.RemoveBack()
last, _ = list.Back()
if last != count-2 {
fmt.Println("Back error ", last)
}
if list.RemoveValue(10) != 1 {
fmt.Println("RemoveValue error")
}
array := list.ToList()
fmt.Println(array)
for i := 0; i < count; i++ {
list.PushBack(10)
}
array = list.ToList()
fmt.Println(array)
if list.RemoveValue(10) != count {
fmt.Println("RemoveValue error")
}
array = list.ToList()
fmt.Println(array)
if list.Exist(10) {
fmt.Println("Exist error")
}
list.PushBack(10)
if !list.Exist(10) {
fmt.Println("Exist error")
}
}
type IMap interface {
Set(key string, value interface{}) //添加元素,已存在就覆盖
Get(key string) (interface{}, bool) //根据key获取元素,bool:true存在,false不存在
Exist(key string) bool //判断key是否存在
Remove(key string) bool //删除指定的key
Len() int //元素个数
Clear() //清除所有元素
Values() []interface{} //获取所有值
Keys() []string //获取所有key
Marshal() ([]byte, error) //序列化
Unmarshal(data []byte) error //反序列化
}
package main
import (
"fmt"
"github.com/chentaihan/container/hashmap"
)
func main() {
tests := []struct {
key string
value string
}{
{
"key1",
"value1",
},
{
"key2",
"value2",
},
{
"key3",
"value3",
},
{
"key4",
"value4",
},
{
"key5",
"value5",
},
}
sm := hashmap.NewMap() //map简单封装
//sm := hashmap.NewMapSync() //同步map
//sm := hashmap.NewTreeMap() //二叉树map
//sm := hashmap.NewLinkMap() //顺序map
for _, test := range tests {
sm.Set(test.key, test.value)
}
for _, test := range tests {
value, _ := sm.Get(test.key)
if value.(string) != test.value {
fmt.Println("equal ", test.key, value.(string), test.value)
}
if !sm.Exist(test.key) {
fmt.Println("exist ", test.key, test.value)
}
}
if sm.Len() != len(tests) {
fmt.Println("len: ", sm.Len(), len(tests))
}
if sm.Exist("asdfghjtre") {
fmt.Println("exist ", "asdfghjtre")
}
data, _ := sm.Marshal()
fmt.Println(string(data))
fmt.Println("success")
dataString := `{"key1":"value1","key2":"value2","key3":"value3","key4":"value4","key5":"value5","key6":"value6"}`
err := sm.Unmarshal([]byte(dataString))
if err != nil {
fmt.Println(err)
}
for _, test := range tests {
if !sm.Exist(test.key) {
fmt.Println("exist ", test.key, test.value)
}
}
if !sm.Exist("key6") {
fmt.Println("key6 not exist ")
}
value6, _ := sm.Get("key6")
if value6 != "value6" {
fmt.Println("key6 value error ", value6)
}
sm.Clear()
if sm.Len() != 0 {
fmt.Println("clear ", sm.Len())
}
}
type ISet interface {
Add(val int) bool //添加元素
Exist(val int) bool //判断是否存在
Remove(val int) bool //删除指定的值
Len() int //元素个数
Clear() //删除所有元素
GetArray() []int //返回所有元素(不复制)
Copy() []int //复制并返回所有元素
}
package main
import (
"fmt"
"github.com/chentaihan/container/common"
"github.com/chentaihan/container/set"
)
func main() {
tests := []struct {
list []int
sortList []int
size int
}{
{
[]int{1, 1, 1, 1, 1, 1, 1},
[]int{1},
1,
},
{
[]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 0},
[]int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
10,
},
}
for index, test := range tests {
var s set.ISet = set.NewSet()
for i := 0; i < len(test.list); i++ {
s.Add(test.list[i])
}
if s.Len() != test.size {
fmt.Println("size error", index)
}
if !common.IntEqualSort(s.GetArray(), test.sortList) {
fmt.Println("add error", index)
}
s.Remove(1)
s.Clear()
}
}
//树接口
type ITree interface {
Add(val IObject) //添加元素
Find(val IObject) *TreeNode //查找元素
GetRoot() *TreeNode //获取根节点
Remove(val IObject) bool //删除元素
GetDepth() int //树深度
GetCount() int //节点个数
MinNode(root *TreeNode) *TreeNode //获取最小子节点(从当前节点开始查找)
MaxNode(root *TreeNode) *TreeNode //获取最大子节点(从当前节点开始查找)
ToList() []IObject //获取所有节点值
}
package main
import (
"fmt"
"github.com/chentaihan/container/tree"
)
type integer int
func (i integer) GetHashCode() int {
return int(i)
}
func intEqual(nums1, nums2 []tree.IObject) bool {
if (nums1 == nil && nums2 != nil) || (nums1 != nil && nums2 == nil) {
return false
}
if len(nums1) != len(nums2) {
return false
}
for i := 0; i < len(nums1); i++ {
if nums1[i].GetHashCode() != nums2[i].GetHashCode() {
return false
}
}
return true
}
func main() {
tests := []struct {
nums []integer
depth int
count int
minVal int
maxVal int
findVal int
findResult bool
list []integer
}{
{
[]integer{5, 4, 8, 2, 3, 9, 1, 6, 7, 15, 12, 20, 14, 11, 25, 18, 30},
7,
17,
1,
30,
13,
false,
[]integer{1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 15, 18, 20, 25, 30},
},
}
for _, test := range tests {
root := tree.NewBinaryTree()
for i := 0; i < len(test.nums); i++ {
root.Add(test.nums[i])
}
if root.GetDepth() != test.depth {
fmt.Println("GetDepth error")
}
count := root.GetCount()
if count != test.count {
fmt.Println("GetCount error")
}
if test.minVal != root.MinNode(root.GetRoot()).Val.GetHashCode() {
fmt.Println("MinNode error")
}
if test.maxVal != root.MaxNode(root.GetRoot()).Val.GetHashCode() {
fmt.Println("MaxNode error")
}
if test.findResult != (root.Find(integer(test.findVal)) != nil) {
fmt.Println("Find error")
}
var list []tree.IObject
for i := 0; i < len(test.list); i++ {
list = append(list, test.list[i])
}
if !intEqual(list, root.ToList()) {
fmt.Println("ToList error")
}
}
}
/**
LRU是Least Recently Used的缩写,即最近最少使用,是一种常用的页面置换算法,
选择最近最久未使用的页面予以淘汰。该算法赋予每个页面一个访问字段,
用来记录一个页面自上次被访问以来所经历的时间 t,当须淘汰一个页面时,
选择现有页面中其 t 值最大的,即最近最少使用的页面予以淘汰。
*/
type ILru interface {
Add(key string, val interface{}) //添加元素
Get(key string) (interface{}, bool) //获取元素,不存在返回false
Remove(key string) (interface{}, bool) //删除元素,删除失败返回false
Len() int //元素个数
Cap() int //容量
SetCap(cap int) //调整容量,只缩不增
Clear() //删除所有元素
Values() []interface{} //获取所有值
Keys() []string //获取所有key
}
/**
基于过期时间的LRU,将元素保存到集合中,expireTime秒后自动删除
采取的是惰性删除机制,访问任何一个接口,都会删除一定数量的过期的数据
*/
type ILruTime interface {
// 添加元素,如果已经存在的就更新过期时间
// expireTime秒后自动删除
Add(val IObject, expireTime int64)
//获取元素,不存在返回false
Get(hashCode int) (IObject, bool)
//获取队首元素,即将被删除的元素
Peek() (IObject, bool)
//元素个数
Len() int
//删除所有元素
Clear()
//获取所有值
GetArray() []IObject
//删除一定数量的过期数据,返回删除数量
RemoveOutOfTime() int
//停止处理
Stop()
}
package main
import (
"fmt"
"github.com/chentaihan/container/cache"
"github.com/chentaihan/container/common"
"strconv"
)
func toIntArray(array []interface{}) []int {
list := make([]int, len(array))
for i := 0; i < len(list); i++ {
list[i] = common.ToInt(array[i])
}
return list
}
func main() {
tests := []struct {
list []int
cap int
}{
{
[]int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
10,
},
{
[]int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
11,
},
}
for index, test := range tests {
lru := lru.NewLru(test.cap)
for i := 0; i < len(test.list); i++ {
lru.Add(strconv.Itoa(test.list[i]), test.list[i])
list := toIntArray(lru.Values())
var array []int
if i < test.cap {
array = test.list[:i+1]
} else {
ii := i - test.cap + 1
array = test.list[ii : ii+test.cap]
}
if !common.IntEqualSort(list, array) {
fmt.Println(list, array)
fmt.Println("add error", index, i, test.cap)
}
fmt.Println(index, i, "success")
}
}
}
//堆接口
type IObject interface {
GetHashCode() int //按照这个函数排序
}
type IHeap interface {
Push(h IObject) //添加元素
Pop() IObject //删除顶部元素(第0个元素)
Peek() IObject //获取顶部元素(第0个元素)
Remove(h IObject) bool //删除指定下标元素
Len() int //元素个数
Cap() int //容量
Empty() bool //堆是否为空
Exist(h IObject) bool //是否包含指定元素
Clear() //删除所有元素
GetArray() []IObject //获取元素数组(不复制)
Copy() []IObject //复制所有元素
}
package main
import (
"fmt"
heap2 "github.com/chentaihan/container/heap"
)
type integer int
func (i integer) GetHashCode() int {
return int(i)
}
func main() {
count := 100
heap := heap2.NewBigHeap(count) //大堆
//heap := heap2.NewSmallHeap(count) //小堆
for i := 0; i < count; i++ {
heap.Push(integer(i))
}
if !heap.Contains(integer(20)) {
fmt.Println("Contain error")
}
if !heap.Remove(integer(20)) {
fmt.Println("remove error")
}
heap.Push(integer(20))
for heap.Len() > 0 {
l := heap.Len()
val := heap.Pop()
if val.GetHashCode() != l-1 {
fmt.Println("pop error", val.GetHashCode(), l-1)
}
}
for i := 0; i < count; i++ {
heap.Push(integer(i))
}
list := heap.GetArray()
fmt.Println(list)
heap.Pop()
list = heap.GetArray()
fmt.Println(list)
heap.Push(integer(20))
list = heap.GetArray()
fmt.Println(list)
for heap.Len() > 0 {
heap.Pop()
}
if !heap.Empty() {
fmt.Println("clear error")
}
heap.Clear()
if !heap.Empty() {
fmt.Println("clear error")
}
}