feat: add Pop for set

This commit is contained in:
dudaodong
2023-03-20 11:10:35 +08:00
parent 70d0adde42
commit 965e5fbcda
4 changed files with 256 additions and 162 deletions

View File

@@ -1,16 +1,17 @@
# Set
Set is a data container, like list, but elements of set is not duplicate.
<div STYLE="page-break-after: always;"></div>
## Source
- [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
- [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
<div STYLE="page-break-after: always;"></div>
## Usage
```go
import (
set "github.com/duke-git/lancet/v2/datastructure/set"
@@ -21,33 +22,32 @@ import (
## Index
- [NewSet](#NewSet)
- [NewSetFromSlice](#NewSetFromSlice)
- [Values](#Values)
- [Add](#Add)
- [AddIfNotExist](#AddIfNotExist)
- [AddIfNotExistBy](#AddIfNotExistBy)
- [Delete](#Delete)
- [Contain](#Contain)
- [ContainAll](#ContainAll)
- [Clone](#Clone)
- [Size](#Size)
- [Equal](#Equal)
- [Iterate](#Iterate)
- [EachWithBreak](#EachWithBreak)
- [IsEmpty](#IsEmpty)
- [Union](#Union)
- [Intersection](#Intersection)
- [SymmetricDifference](#SymmetricDifference)
- [Minus](#Minus)
- [NewSet](#NewSet)
- [NewSetFromSlice](#NewSetFromSlice)
- [Values](#Values)
- [Add](#Add)
- [AddIfNotExist](#AddIfNotExist)
- [AddIfNotExistBy](#AddIfNotExistBy)
- [Delete](#Delete)
- [Contain](#Contain)
- [ContainAll](#ContainAll)
- [Clone](#Clone)
- [Size](#Size)
- [Equal](#Equal)
- [Iterate](#Iterate)
- [EachWithBreak](#EachWithBreak)
- [IsEmpty](#IsEmpty)
- [Union](#Union)
- [Intersection](#Intersection)
- [SymmetricDifference](#SymmetricDifference)
- [Minus](#Minus)
<div STYLE="page-break-after: always;"></div>
## Documentation
### <span id="NewSet">NewSet</span>
<p>Create a set instance</p>
<b>Signature:</b>
@@ -56,6 +56,7 @@ import (
type Set[T comparable] map[T]bool
func NewSet[T comparable](items ...T) Set[T]
```
<b>Example:</b>
```go
@@ -72,8 +73,8 @@ func main() {
}
```
### <span id="NewSetFromSlice">NewSetFromSlice</span>
<p>Create a set from slice</p>
<b>Signature:</b>
@@ -81,6 +82,7 @@ func main() {
```go
func NewSetFromSlice[T comparable](items []T) Set[T]
```
<b>Example:</b>
```go
@@ -97,9 +99,8 @@ func main() {
}
```
### <span id="Values">Values</span>
<p>Return slice of all set data</p>
<b>Signature:</b>
@@ -107,6 +108,7 @@ func main() {
```go
func (s Set[T]) Values() []T
```
<b>Example:</b>
```go
@@ -123,10 +125,8 @@ func main() {
}
```
### <span id="Add">Add</span>
<p>Add items to set</p>
<b>Signature:</b>
@@ -134,6 +134,7 @@ func main() {
```go
func (s Set[T]) Add(items ...T)
```
<b>Example:</b>
```go
@@ -152,8 +153,8 @@ func main() {
}
```
### <span id="AddIfNotExist">AddIfNotExist</span>
<p>AddIfNotExist checks if item exists in the set, it adds the item to set and returns true if it does not exist in the set, or else it does nothing and returns false.</p>
<b>Signature:</b>
@@ -161,6 +162,7 @@ func main() {
```go
func (s Set[T]) AddIfNotExist(item T) bool
```
<b>Example:</b>
```go
@@ -176,7 +178,7 @@ func main() {
st.Add(1, 2, 3)
r1 := st.AddIfNotExist(1)
r2 := st.AddIfNotExist(4)
r2 := st.AddIfNotExist(4)
fmt.Println(r1) // false
fmt.Println(r2) // true
@@ -184,8 +186,8 @@ func main() {
}
```
### <span id="AddIfNotExistBy">AddIfNotExistBy</span>
<p>AddIfNotExistBy checks if item exists in the set and pass the `checker` function it adds the item to set and returns true if it does not exists in the set and function `checker` returns true, or else it does nothing and returns false.</p>
<b>Signature:</b>
@@ -193,6 +195,7 @@ func main() {
```go
func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool
```
<b>Example:</b>
```go
@@ -207,23 +210,23 @@ func main() {
st := set.NewSet[int]()
st.Add(1, 2)
ok := st.AddIfNotExistBy(3, func(val int) bool {
return val%2 != 0
})
ok := st.AddIfNotExistBy(3, func(val int) bool {
return val%2 != 0
})
fmt.Println(ok) // true
notOk := st.AddIfNotExistBy(4, func(val int) bool {
return val%2 != 0
})
notOk := st.AddIfNotExistBy(4, func(val int) bool {
return val%2 != 0
})
fmt.Println(notOk) // false
fmt.Println(st.Values()) // 1, 2, 3
}
```
### <span id="Delete">Delete</span>
<p>Delete item in set</p>
<b>Signature:</b>
@@ -231,6 +234,7 @@ func main() {
```go
func (s Set[T]) Delete(items ...T)
```
<b>Example:</b>
```go
@@ -250,9 +254,8 @@ func main() {
}
```
### <span id="Contain">Contain</span>
<p>Check if item is in set or not</p>
<b>Signature:</b>
@@ -260,6 +263,7 @@ func main() {
```go
func (s Set[T]) Contain(item T) bool
```
<b>Example:</b>
```go
@@ -279,10 +283,8 @@ func main() {
}
```
### <span id="ContainAll">ContainAll</span>
<p>Checks if set contains another set</p>
<b>Signature:</b>
@@ -290,6 +292,7 @@ func main() {
```go
func (s Set[T]) ContainAll(other Set[T]) bool
```
<b>Example:</b>
```go
@@ -302,17 +305,16 @@ import (
func main() {
set1 := set.NewSet(1, 2, 3)
set2 := set.NewSet(1, 2)
set3 := set.NewSet(1, 2, 3, 4)
set2 := set.NewSet(1, 2)
set3 := set.NewSet(1, 2, 3, 4)
fmt.Println(set1.ContainAll(set2)) //true
fmt.Println(set1.ContainAll(set3)) //false
}
```
### <span id="Size">Size</span>
<p>Get the number of elements in set</p>
<b>Signature:</b>
@@ -320,6 +322,7 @@ func main() {
```go
func (s Set[T]) Size() int
```
<b>Example:</b>
```go
@@ -337,9 +340,8 @@ func main() {
}
```
### <span id="Clone">Clone</span>
<p>Make a copy of set</p>
<b>Signature:</b>
@@ -347,6 +349,7 @@ func main() {
```go
func (s Set[T]) Clone() Set[T]
```
<b>Example:</b>
```go
@@ -366,10 +369,8 @@ func main() {
}
```
### <span id="Equal">Equal</span>
<p>Check if two sets has same elements or not</p>
<b>Signature:</b>
@@ -377,6 +378,7 @@ func main() {
```go
func (s Set[T]) Equal(other Set[T]) bool
```
<b>Example:</b>
```go
@@ -397,9 +399,8 @@ func main() {
}
```
### <span id="Iterate">Iterate</span>
<p>Call function by every element of set</p>
<b>Signature:</b>
@@ -407,6 +408,7 @@ func main() {
```go
func (s Set[T]) Iterate(fn func(item T))
```
<b>Example:</b>
```go
@@ -428,8 +430,8 @@ func main() {
}
```
### <span id="EachWithBreak">EachWithBreak</span>
<p>Iterates over elements of a set and invokes function for each element, when iteratee return false, will break the for each loop.</p>
<b>Signature:</b>
@@ -437,6 +439,7 @@ func main() {
```go
func (s Set[T]) EachWithBreak(iteratee func(item T) bool)
```
<b>Example:</b>
```go
@@ -450,21 +453,22 @@ import (
func main() {
s := set.NewSet(1, 2, 3, 4, 5)
var sum int
var sum int
s.EachWithBreak(func(n int) bool {
if n > 3 {
return false
}
sum += n
return true
})
s.EachWithBreak(func(n int) bool {
if n > 3 {
return false
}
sum += n
return true
})
fmt.Println(sum) //6
}
```
### <span id="IsEmpty">IsEmpty</span>
<p>Check if the set is empty or not</p>
<b>Signature:</b>
@@ -472,6 +476,7 @@ func main() {
```go
func (s Set[T]) IsEmpty() bool
```
<b>Example:</b>
```go
@@ -491,9 +496,8 @@ func main() {
}
```
### <span id="Union">Union</span>
<p>Create a new set contain all element of set s and other</p>
<b>Signature:</b>
@@ -501,6 +505,7 @@ func main() {
```go
func (s Set[T]) Union(other Set[T]) Set[T]
```
<b>Example:</b>
```go
@@ -520,9 +525,8 @@ func main() {
}
```
### <span id="Intersection">Intersection</span>
<p>Create a new set whose element both be contained in set s and other</p>
<b>Signature:</b>
@@ -530,6 +534,7 @@ func main() {
```go
func (s Set[T]) Intersection(other Set[T]) Set[T]
```
<b>Example:</b>
```go
@@ -549,11 +554,8 @@ func main() {
}
```
### <span id="SymmetricDifference">SymmetricDifference</span>
<p>Create a new set whose element is in set1 or set2, but not in both set1 and set2</p>
<b>Signature:</b>
@@ -561,6 +563,7 @@ func main() {
```go
func (s Set[T]) SymmetricDifference(other Set[T]) Set[T]
```
<b>Example:</b>
```go
@@ -573,18 +576,15 @@ import (
func main() {
set1 := set.NewSet(1, 2, 3)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set1.SymmetricDifference(set2)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set1.SymmetricDifference(set2)
fmt.Println(set3.Values()) //1,4,5
}
```
### <span id="Minus">Minus</span>
<p>Create an set of whose element in origin set but not in compared set</p>
<b>Signature:</b>
@@ -592,6 +592,7 @@ func main() {
```go
func (s Set[T]) Minus(comparedSet Set[T]) Set[T]
```
<b>Example:</b>
```go
@@ -604,8 +605,8 @@ import (
func main() {
set1 := set.NewSet(1, 2, 3)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set.NewSet(2, 3)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set.NewSet(2, 3)
res1 := set1.Minus(set2)
fmt.Println(res1.Values()) //1
@@ -615,5 +616,35 @@ func main() {
}
```
### <span id="Pop">Pop</span>
<p>Delete the top element of set then return it, if set is empty, return nil-value of T and false.</p>
<b>Signature:</b>
```go
func (s Set[T]) Pop() (v T, ok bool)
```
<b>Example:</b>
```go
package main
import (
"fmt"
set "github.com/duke-git/lancet/v2/datastructure/set"
)
func main() {
s := set.NewSet[int]()
s.Add(1)
s.Add(2)
s.Add(3)
val, ok = s.Pop()
fmt.Println(val) // 3
fmt.Println(ok) // true
}
```

View File

@@ -1,16 +1,17 @@
# Set
Set集合数据结构类似列表。Set中元素不重复。
Set 集合数据结构类似列表。Set 中元素不重复。
<div STYLE="page-break-after: always;"></div>
## 源码
- [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
- [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
<div STYLE="page-break-after: always;"></div>
## 用法
```go
import (
set "github.com/duke-git/lancet/v2/datastructure/set"
@@ -21,32 +22,31 @@ import (
## 目录
- [NewSet](#NewSet)
- [NewSetFromSlice](#NewSetFromSlice)
- [Values](#Values)
- [Add](#Add)
- [AddIfNotExist](#AddIfNotExist)
- [AddIfNotExistBy](#AddIfNotExistBy)
- [Delete](#Delete)
- [Contain](#Contain)
- [ContainAll](#ContainAll)
- [Clone](#Clone)
- [Size](#Size)
- [Equal](#Equal)
- [Iterate](#Iterate)
- [IsEmpty](#IsEmpty)
- [Union](#Union)
- [Intersection](#Intersection)
- [SymmetricDifference](#SymmetricDifference)
- [Minus](#Minus)
- [NewSet](#NewSet)
- [NewSetFromSlice](#NewSetFromSlice)
- [Values](#Values)
- [Add](#Add)
- [AddIfNotExist](#AddIfNotExist)
- [AddIfNotExistBy](#AddIfNotExistBy)
- [Delete](#Delete)
- [Contain](#Contain)
- [ContainAll](#ContainAll)
- [Clone](#Clone)
- [Size](#Size)
- [Equal](#Equal)
- [Iterate](#Iterate)
- [IsEmpty](#IsEmpty)
- [Union](#Union)
- [Intersection](#Intersection)
- [SymmetricDifference](#SymmetricDifference)
- [Minus](#Minus)
<div STYLE="page-break-after: always;"></div>
## 文档
### <span id="NewSet">NewSet</span>
<p>返回Set结构体对象</p>
<b>函数签名:</b>
@@ -55,6 +55,7 @@ import (
type Set[T comparable] map[T]bool
func NewSet[T comparable](items ...T) Set[T]
```
<b>示例:</b>
```go
@@ -71,9 +72,8 @@ func main() {
}
```
### <span id="NewSetFromSlice">NewSetFromSlice</span>
<p>基于切片创建集合</p>
<b>函数签名:</b>
@@ -81,6 +81,7 @@ func main() {
```go
func NewSetFromSlice[T comparable](items []T) Set[T]
```
<b>示例:</b>
```go
@@ -97,9 +98,8 @@ func main() {
}
```
### <span id="Values">Values</span>
<p>获取集合中所有元素的切片</p>
<b>函数签名:</b>
@@ -107,6 +107,7 @@ func main() {
```go
func (s Set[T]) Values() []T
```
<b>示例:</b>
```go
@@ -123,10 +124,8 @@ func main() {
}
```
### <span id="Add">Add</span>
<p>向集合中添加元素</p>
<b>函数签名:</b>
@@ -134,6 +133,7 @@ func main() {
```go
func (s Set[T]) Add(items ...T)
```
<b>示例:</b>
```go
@@ -152,8 +152,8 @@ func main() {
}
```
### <span id="AddIfNotExist">AddIfNotExist</span>
<p>如果集合中不存在元素则添加该元素返回true, 如果集合中存在元素, 不做任何操作返回false</p>
<b>函数签名:</b>
@@ -161,6 +161,7 @@ func main() {
```go
func (s Set[T]) AddIfNotExist(item T) bool
```
<b>示例:</b>
```go
@@ -176,7 +177,7 @@ func main() {
st.Add(1, 2, 3)
r1 := st.AddIfNotExist(1)
r2 := st.AddIfNotExist(4)
r2 := st.AddIfNotExist(4)
fmt.Println(r1) // false
fmt.Println(r2) // true
@@ -184,8 +185,8 @@ func main() {
}
```
### <span id="AddIfNotExistBy">AddIfNotExistBy</span>
<p>根据checker函数判断元素是否在集合中如果集合中不存在元素且checker返回true则添加该元素返回true, 否则不做任何操作返回false</p>
<b>函数签名:</b>
@@ -193,6 +194,7 @@ func main() {
```go
func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool
```
<b>示例:</b>
```go
@@ -207,24 +209,23 @@ func main() {
st := set.NewSet[int]()
st.Add(1, 2)
ok := st.AddIfNotExistBy(3, func(val int) bool {
return val%2 != 0
})
ok := st.AddIfNotExistBy(3, func(val int) bool {
return val%2 != 0
})
fmt.Println(ok) // true
notOk := st.AddIfNotExistBy(4, func(val int) bool {
return val%2 != 0
})
notOk := st.AddIfNotExistBy(4, func(val int) bool {
return val%2 != 0
})
fmt.Println(notOk) // false
fmt.Println(st.Values()) // 1, 2, 3
}
```
### <span id="Delete">Delete</span>
<p>删除集合中元素</p>
<b>函数签名:</b>
@@ -232,6 +233,7 @@ func main() {
```go
func (s Set[T]) Delete(items ...T)
```
<b>示例:</b>
```go
@@ -251,9 +253,8 @@ func main() {
}
```
### <span id="Contain">Contain</span>
<p>判断集合是否包含某个值</p>
<b>函数签名:</b>
@@ -261,6 +262,7 @@ func main() {
```go
func (s Set[T]) Contain(item T) bool
```
<b>示例:</b>
```go
@@ -280,10 +282,8 @@ func main() {
}
```
### <span id="ContainAll">ContainAll</span>
<p>判断集合是否包含另一个集合</p>
<b>函数签名:</b>
@@ -291,6 +291,7 @@ func main() {
```go
func (s Set[T]) ContainAll(other Set[T]) bool
```
<b>示例:</b>
```go
@@ -303,17 +304,16 @@ import (
func main() {
set1 := set.NewSet(1, 2, 3)
set2 := set.NewSet(1, 2)
set3 := set.NewSet(1, 2, 3, 4)
set2 := set.NewSet(1, 2)
set3 := set.NewSet(1, 2, 3, 4)
fmt.Println(set1.ContainAll(set2)) //true
fmt.Println(set1.ContainAll(set3)) //false
}
```
### <span id="Size">Size</span>
<p>获取集合中元素的个数</p>
<b>函数签名:</b>
@@ -321,6 +321,7 @@ func main() {
```go
func (s Set[T]) Size() int
```
<b>示例:</b>
```go
@@ -338,9 +339,8 @@ func main() {
}
```
### <span id="Clone">Clone</span>
<p>克隆一个集合</p>
<b>函数签名:</b>
@@ -348,6 +348,7 @@ func main() {
```go
func (s Set[T]) Clone() Set[T]
```
<b>示例:</b>
```go
@@ -367,10 +368,8 @@ func main() {
}
```
### <span id="Equal">Equal</span>
<p>比较两个集合是否相等,包含相同元素为相等</p>
<b>函数签名:</b>
@@ -378,6 +377,7 @@ func main() {
```go
func (s Set[T]) Equal(other Set[T]) bool
```
<b>示例:</b>
```go
@@ -398,9 +398,8 @@ func main() {
}
```
### <span id="Iterate">Iterate</span>
<p>迭代结合,在每个元素上调用函数</p>
<b>函数签名:</b>
@@ -408,6 +407,7 @@ func main() {
```go
func (s Set[T]) Iterate(fn func(item T))
```
<b>示例:</b>
```go
@@ -429,8 +429,8 @@ func main() {
}
```
### <span id="EachWithBreak">EachWithBreak</span>
<p>遍历集合的元素并为每个元素调用iteratee函数当iteratee函数返回false时终止遍历。</p>
<b>函数签名:</b>
@@ -438,6 +438,7 @@ func main() {
```go
func (s Set[T]) EachWithBreak(iteratee func(item T) bool)
```
<b>示例:</b>
```go
@@ -451,22 +452,22 @@ import (
func main() {
s := set.NewSet(1, 2, 3, 4, 5)
var sum int
var sum int
s.EachWithBreak(func(n int) bool {
if n > 3 {
return false
}
sum += n
return true
})
s.EachWithBreak(func(n int) bool {
if n > 3 {
return false
}
sum += n
return true
})
fmt.Println(sum) //6
}
```
### <span id="IsEmpty">IsEmpty</span>
<p>判断集合是否为空</p>
<b>函数签名:</b>
@@ -474,6 +475,7 @@ func main() {
```go
func (s Set[T]) IsEmpty() bool
```
<b>示例:</b>
```go
@@ -493,9 +495,8 @@ func main() {
}
```
### <span id="Union">Union</span>
<p>求两个集合的并集</p>
<b>函数签名:</b>
@@ -503,6 +504,7 @@ func main() {
```go
func (s Set[T]) Union(other Set[T]) Set[T]
```
<b>示例:</b>
```go
@@ -522,9 +524,8 @@ func main() {
}
```
### <span id="Intersection">Intersection</span>
<p>求两个集合的交集</p>
<b>函数签名:</b>
@@ -532,6 +533,7 @@ func main() {
```go
func (s Set[T]) Intersection(other Set[T]) Set[T]
```
<b>示例:</b>
```go
@@ -551,8 +553,8 @@ func main() {
}
```
### <span id="SymmetricDifference">SymmetricDifference</span>
<p>返回一个集合,其中元素在第一个集合或第二个集合中,且不同时存在于两个集合中</p>
<b>函数签名:</b>
@@ -560,6 +562,7 @@ func main() {
```go
func (s Set[T]) SymmetricDifference(other Set[T]) Set[T]
```
<b>示例:</b>
```go
@@ -572,18 +575,15 @@ import (
func main() {
set1 := set.NewSet(1, 2, 3)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set1.SymmetricDifference(set2)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set1.SymmetricDifference(set2)
fmt.Println(set3.Values()) //1,4,5
}
```
### <span id="Minus">Minus</span>
<p>创建一个集合,其元素在原始集中但不在比较集中</p>
<b>函数签名:</b>
@@ -591,6 +591,7 @@ func main() {
```go
func (s Set[T]) Minus(comparedSet Set[T]) Set[T]
```
<b>示例:</b>
```go
@@ -603,8 +604,8 @@ import (
func main() {
set1 := set.NewSet(1, 2, 3)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set.NewSet(2, 3)
set2 := set.NewSet(2, 3, 4, 5)
set3 := set.NewSet(2, 3)
res1 := set1.Minus(set2)
fmt.Println(res1.Values()) //1
@@ -614,5 +615,35 @@ func main() {
}
```
### <span id="Pop">Pop</span>
<p>删除并返回集合中的顶部元素</p>
<b>函数签名:</b>
```go
func (s Set[T]) Pop() (v T, ok bool)
```
<b>示例:</b>
```go
package main
import (
"fmt"
set "github.com/duke-git/lancet/v2/datastructure/set"
)
func main() {
s := set.NewSet[int]()
s.Add(1)
s.Add(2)
s.Add(3)
val, ok = s.Pop()
fmt.Println(val) // 3
fmt.Println(ok) // true
}
```