feat(Go-Tool)：2021/06/16 新增一个数拆分成N个数且N个数相加和等于这个数工具、测试方法

2021-06-16 11:57:20 +08:00
parent 092ab58276
commit 9ba69e98d5
6 changed files with 254 additions and 0 deletions
@@ -0,0 +1,9 @@
+## 需求
+这里的实际需求是策划案中的掷骰子，先随机得到骰子的总和，再将骰子拆分成三个随机的骰子数，策划案中说明有对出现豹子进行控制，这边不把这个实现做进来
+如果需要进行控制，则在获取结果之后进行控制即可，重新掷骰子的概率不会特别高，因为豹子本身就是一个低概率的事件。
+
+
+## 实现
+总共两个实现，一个是实际需求中的三个数的拆分
+
+另一个是N个数的拆分，这边用Splitter结构体实现，在创建的时候需要进行数字与数量的校验
@@ -0,0 +1,44 @@
+/*
+ *  @Author : huangZJ
+ *  @Time : 2021/6/16 10:50
+ *  @Description：
+ */
+
+package splitNumToN
+
+import (
+	"Go-Tool/util/rand"
+	"fmt"
+)
+
+//将一个数拆解成三个
+func SplitNumTo3(num int) {
+	randNumList := make([]int, 0)
+	var count int
+	for i := 0; i < 2; i++ {
+		randNum := getRandValue(num-count, 3-1-i)
+		randNumList = append(randNumList, randNum)
+		count = count + randNum
+	}
+
+	randNumList = append(randNumList, num-count)
+
+	for _, num := range randNumList {
+		fmt.Print(fmt.Sprintf("%d ", num))
+	}
+}
+
+//num 被随机的数
+//count count + 1 = 总随机数数量
+func getRandValue(num int, count int) int {
+	minValue := num - 6*count
+	if minValue <= 0 {
+		minValue = 1
+	}
+	maxValue := num - count*1
+	if maxValue > 6 {
+		maxValue = 6
+	}
+
+	return rand.GetRandInt(minValue, maxValue)
+}
@@ -0,0 +1,24 @@
+/*
+ *  @Author : huangZJ
+ *  @Time : 2021/6/16 10:52
+ *  @Description：
+ */
+
+package splitNumToN
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestSplitNumTo3(t *testing.T) {
+	for i := 4; i <= 17; i++ {
+		fmt.Println()
+		fmt.Println(fmt.Sprintf("当前随机数为%d", i))
+		for j := 0; j < 100; j++ {
+			fmt.Println()
+			SplitNumTo3(i)
+		}
+		fmt.Println()
+	}
+}
@@ -0,0 +1,72 @@
+/*
+ *  @Author : huangZJ
+ *  @Time : 2021/6/15 11:20
+ *  @Description：将一个数拆分成其他N个数，这N个数相加的结果等于这个数
+ */
+
+package splitNumToN
+
+import "Go-Tool/util/rand"
+
+type Splitter struct {
+	NumCount int //拆分成随机数的数量
+	Num      int //被拆分的总数
+	MinValue int //被拆分的最小值
+	MaxValue int //被拆分的最大值
+
+	SplitNumList []int //存放拆解之后的结果
+}
+
+func NewSplitter(numCount, num int) *Splitter {
+	//给定默认的限制的最大最小值
+	splitter := &Splitter{
+		NumCount:     numCount,
+		Num:          num,
+		MinValue:     1,
+		MaxValue:     6,
+		SplitNumList: make([]int, 0),
+	}
+	//校验数值是否满足
+	splitter.checkValue()
+	return splitter
+}
+
+func (splitter *Splitter) checkValue() {
+	if splitter.MinValue*splitter.NumCount > splitter.Num {
+		panic("被拆分的数值过小")
+	}
+	if splitter.MaxValue*splitter.NumCount < splitter.Num {
+		panic("被拆分的数值过大")
+	}
+}
+
+//将一个数拆成N个，并且保证N个数相加值等于被拆分的这个数
+func (splitter *Splitter) SplitNumToN() {
+	var count int
+	for i := 0; i < splitter.NumCount-1; i++ {
+		randNum := splitter.getRandValue(splitter.Num-count, splitter.NumCount-1-i)
+		splitter.SplitNumList = append(splitter.SplitNumList, randNum)
+		count = count + randNum
+	}
+
+	splitter.SplitNumList = append(splitter.SplitNumList, splitter.Num-count)
+}
+
+func (splitter *Splitter) GetRandNumList() []int {
+	return splitter.SplitNumList
+}
+
+//num 被随机的数
+//count count + 1 = 总随机数数量
+func (splitter *Splitter) getRandValue(num int, count int) int {
+	minValue := num - splitter.MaxValue*count
+	if minValue <= 0 {
+		minValue = splitter.MinValue
+	}
+	maxValue := num - count*1
+	if maxValue > splitter.MaxValue {
+		maxValue = splitter.MaxValue
+	}
+
+	return rand.GetRandInt(minValue, maxValue)
+}
@@ -0,0 +1,103 @@
+/*
+ *  @Author : huangZJ
+ *  @Time : 2021/6/16 9:50
+ *  @Description：
+ */
+
+package splitNumToN
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestSplitNumToNWith2(t *testing.T) {
+
+	fmt.Println("测试两个数的情况")
+	for i := 3; i <= 11; i++ {
+		fmt.Println()
+		fmt.Println(fmt.Sprintf("当前随机数为%d", i))
+		for j := 0; j < 20; j++ {
+			splitter := NewSplitter(2, i)
+			splitter.SplitNumToN()
+			for _, num := range splitter.GetRandNumList() {
+				fmt.Print(fmt.Sprintf("%d ", num))
+			}
+			fmt.Println()
+		}
+		fmt.Println()
+	}
+}
+
+func TestSplitNumToNWith3(t *testing.T) {
+	fmt.Println()
+	fmt.Println("测试三个数的情况")
+	for i := 4; i <= 17; i++ {
+		fmt.Println()
+		fmt.Println(fmt.Sprintf("当前随机数为%d", i))
+		for j := 0; j < 20; j++ {
+			splitter := NewSplitter(3, i)
+			fmt.Println()
+			splitter.SplitNumToN()
+			for _, num := range splitter.GetRandNumList() {
+				fmt.Print(fmt.Sprintf("%d ", num))
+			}
+		}
+		fmt.Println()
+	}
+}
+
+func TestSplitNumToNWith4(t *testing.T) {
+	fmt.Println()
+	fmt.Println("测试四个数的情况")
+	for i := 5; i <= 23; i++ {
+		fmt.Println()
+		fmt.Println(fmt.Sprintf("当前随机数为%d", i))
+		for j := 0; j < 100; j++ {
+			splitter := NewSplitter(4, i)
+			fmt.Println()
+			splitter.SplitNumToN()
+			for _, num := range splitter.GetRandNumList() {
+				fmt.Print(fmt.Sprintf("%d ", num))
+			}
+		}
+		fmt.Println()
+	}
+}
+
+func TestSplitNumToNWith5(t *testing.T) {
+	fmt.Println()
+	fmt.Println("测试五个数的情况")
+	for i := 6; i <= 29; i++ {
+		fmt.Println()
+		fmt.Println(fmt.Sprintf("当前随机数为%d", i))
+		for j := 0; j < 100; j++ {
+			splitter := NewSplitter(5, i)
+			fmt.Println()
+			splitter.SplitNumToN()
+			for _, num := range splitter.GetRandNumList() {
+				fmt.Print(fmt.Sprintf("%d ", num))
+			}
+		}
+		fmt.Println()
+	}
+
+}
+
+func TestSplitNumToNWith6(t *testing.T) {
+	fmt.Println()
+	fmt.Println("测试六个数的情况")
+	for i := 7; i <= 35; i++ {
+		fmt.Println()
+		fmt.Println(fmt.Sprintf("当前随机数为%d", i))
+		for j := 0; j < 100; j++ {
+			splitter := NewSplitter(6, i)
+			fmt.Println()
+			splitter.SplitNumToN()
+			for _, num := range splitter.GetRandNumList() {
+				fmt.Print(fmt.Sprintf("%d ", num))
+			}
+		}
+		fmt.Println()
+	}
+}