fix: add sort

Author: jianggb

thinkgos/go.mod

@@ -5,6 +5,7 @@ go 1.22
 require (
 	github.com/spf13/cast v1.6.0
 	github.com/stretchr/testify v1.9.0
+	golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842
 )
 
 require (

thinkgos/go.sum

@@ -2,8 +2,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -16,6 +16,8 @@ github.com/spf13/cast v1.6.0 h1:GEiTHELF+vaR5dhz3VqZfFSzZjYbgeKDpBxQVS4GYJ0=
 github.com/spf13/cast v1.6.0/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM=
+golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

thinkgos/leet_03/leet_03.go

@@ -1,14 +1,30 @@
 package leet_03
 
-type Node interface {
-	GetId() int
-	GetPid() int
-	AppendChildren(Node)
+import (
+	"golang.org/x/exp/constraints"
+)
+
+type NodeSlice[T constraints.Ordered, E any] []Node[T, E]
+
+func (nodes NodeSlice[T, E]) Len() int {
+	return len(nodes)
+}
+func (nodes NodeSlice[T, E]) Less(i, j int) bool {
+	return nodes[i].GetId() < nodes[j].GetId()
+}
+func (nodes NodeSlice[T, E]) Swap(i, j int) {
+	nodes[i], nodes[j] = nodes[j], nodes[i]
+}
+
+type Node[T constraints.Ordered, E any] interface {
+	GetId() T
+	GetPid() T
+	AppendChildren(E)
 }
 
-func IntoTree[T Node](rows []T, rootPid int) []T {
-	var root []T
-	nodes := make(map[int]T, len(rows))
+func IntoTree[T constraints.Ordered, E Node[T, E]](rows []E, rootPid T) []E {
+	var root []E
+	nodes := make(map[T]E, len(rows))
 	for _, v := range rows {
 		node := v
 		id := node.GetId()
@@ -38,6 +54,6 @@ func (d *Dept) GetPid() int {
 	return d.Pid
 }
 
-func (d *Dept) AppendChildren(v Node) {
-	d.Children = append(d.Children, v.(*Dept))
+func (d *Dept) AppendChildren(v *Dept) {
+	d.Children = append(d.Children, v)
 }