feat(Go-Tool)：2020/11/16：新增项目案例(按照一定规则对一组数据进行排序分组)

ProgressTest/DeliverRule2_test.go

@@ -0,0 +1,140 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/11/16 14:44
+ *  @Description：
+ */
+
+package ProgressTest
+
+import (
+	"Go-Tool/util/rand"
+	"fmt"
+	"math"
+	"testing"
+)
+
+const (
+	MinGroupNum = 10
+	MaxGroupNum = 80
+)
+
+//需求(直接举例)：
+//总共有100个数据，两个变量，大区间(MaxGroupNum) 为80， 小区间(MinGroupNum)为 10 || 100 和 80 对应的参数   都必须是10的倍数
+//第一步：先100个数据排序，然后按照80进行划分。
+//第二步：100划分剩余的数据组成一组
+//第三步：80个数组再一次排序,按照 10 * 4 进行划分，可以分成两组
+//第四步：40每组的数据，要分成最后的10 * 4 的4组，按照每次取前5再随机取5个组成一组的方式组成4组
+//第五步：不足4组的，按照取前5和随机5个的方式进行分组
+func TestDeliver2(t *testing.T) {
+
+	firstOrderRule = FirstOrderRule
+	secondOrderRule = SecondOrderRule
+	thirdOrderRule = ThirdOrderRule
+
+	list := MakeData()                   //创建数据
+	resultList := deliver2(list.Deliver) //进行分组操作
+	fmt.Printf(fmt.Sprintf("%v", resultList))
+}
+
+func deliver2(delivers []*Deliver) [][]int {
+
+	resultList := make([][]int, 0)
+	newDelivers := make([]*Deliver, 0)
+	//获得第一次按照大区间分组后剩下的元素数量、第一次分组所有组、分到的大组数量
+	leaveNum, partitions, partition := FirstOrder(delivers, newDelivers)
+
+	resultList = withCompletePartition(partitions, resultList)                    //对完整的分组进行处理
+	resultList = withLeavePartition(resultList, newDelivers, leaveNum, partition) //对剩余的分组进行处理
+	return resultList
+}
+
+func withLeavePartition(resultList [][]int, newDelivers []*Deliver, leaveNum int, partition int) [][]int {
+	if leaveNum != 0 {
+		leaveList := newDelivers[partition*MaxGroupNum:]
+		resultList = secondOrder(leaveList, resultList, leaveNum)
+	}
+	return resultList
+}
+
+func withCompletePartition(partitions [][]*Deliver, resultList [][]int) [][]int {
+	for _, partition := range partitions {
+		resultList = secondOrder(partition, resultList, len(partition))
+	}
+	return resultList
+}
+
+func FirstOrder(delivers []*Deliver, newDelivers []*Deliver) (int, [][]*Deliver, int) {
+	newDelivers = firstOrderRule(delivers) //第一次排序
+	partition := len(newDelivers) / MaxGroupNum
+	leaveNum := len(newDelivers) % MaxGroupNum
+	partitions := make([][]*Deliver, 0)
+
+	for i := 0; i < partition; i++ {
+		partitions = append(partitions, newDelivers[i*MaxGroupNum:(i+1)*MaxGroupNum])
+	}
+	return leaveNum, partitions, partition
+}
+
+func secondOrder(delivers []*Deliver, resultList [][]int, listNum int) [][]int {
+	newDelivers := secondOrderRule(delivers) //第二次排序
+
+	if listNum > 4*MinGroupNum {
+		fourInOne := listNum / (4 * MinGroupNum)
+		leave := listNum % (4 * MinGroupNum)
+
+		for i := 0; i < fourInOne; i++ {
+			resultList = append(resultList, calculateFourInOne(newDelivers[i*4*MinGroupNum:(i+1)*4*MinGroupNum])...) //四倍在一组的计算
+		}
+
+		if leave != 0 {
+			resultList = append(resultList, calculateByLeft(toList(newDelivers[fourInOne*4*MinGroupNum:]))...)
+		}
+	} else {
+		resultList = append(resultList, calculateByLeft(toList(newDelivers))...)
+	}
+	return resultList
+}
+
+func toList(deliver []*Deliver) [][]int {
+	result := make([][]int, 0)
+	for _, item := range deliver {
+		result = append(result, []int{item.Score, 1})
+	}
+	return result
+}
+
+func calculateFourInOne(delivers []*Deliver) [][]int {
+	Ids := thirdOrderRule(delivers) //第三次排序
+	result := calculateByLeft(Ids)
+	return result
+}
+
+func calculateByLeft(leftList [][]int) [][]int {
+	result := make([][]int, 0)
+	for len(leftList) != 0 {
+		newList := make([]int, 0)
+		thisGroup := getFirstSome(leftList[0 : MinGroupNum/2]) //先拿到前面的几个
+
+		leftList = leftList[MinGroupNum/2:]
+		//然后在随机随取后面的几个
+		for i := 0; i < int(math.Ceil(MinGroupNum/2)); i++ {
+			newList, leftList = getFrontAndEnd(leftList) //从前部和后部进行组合数组
+			thisGroup = append(thisGroup, newList[0])
+		}
+
+		result = append(result, thisGroup)
+	}
+	return result
+}
+
+func getFirstSome(list [][]int) []int {
+	result := make([]int, 0)
+	for _, item := range list {
+		result = append(result, item[0])
+	}
+	return result
+}
+
+func getFrontAndEnd(leftList [][]int) ([]int, [][]int) {
+	return rand.GetAwardByWeightWithLeftAward(leftList)
+}