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hello-algo/codes/go/pkg/vertex.go

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// File: vertex.go
// Created Time: 2023-02-18
// Author: Reanon (793584285@qq.com)
package pkg
// Vertex 顶点类
type Vertex struct {
Val int
}
// NewVertex 构造函数
func NewVertex(val int) Vertex {
return Vertex{
Val: val,
}
}
// ValsToVets Generate a vertex list tree given an array
func ValsToVets(vals []int) []Vertex {
vets := make([]Vertex, len(vals))
for i := 0; i < len(vals); i++ {
vets[i] = NewVertex(vals[i])
}
return vets
}
// VetsToVals Serialize given vertex list to a value list
func VetsToVals(vets []Vertex) []int {
vals := make([]int, len(vets))
for i := range vets {
vals[i] = vets[i].Val
}
return vals
}
// DeleteSliceElms 删除切片指定元素
func DeleteSliceElms[T any](a []T, elms ...T) []T {
if len(a) == 0 || len(elms) == 0 {
return a
}
// 先将元素转为 set
m := make(map[any]struct{})
for _, v := range elms {
m[v] = struct{}{}
}
// 过滤掉指定元素
res := make([]T, 0, len(a))
for _, v := range a {
if _, ok := m[v]; !ok {
res = append(res, v)
}
}
return res
}