feat(Go-Tool):新增lomute划分算法效率单测,结果:多次查找,元素多的情况下由末尾开始查找效率更高

This commit is contained in:
Huangzj
2020-11-09 16:24:20 +08:00
parent f13bd3d529
commit 3616c4b5e5
4 changed files with 152 additions and 11 deletions
+2
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@@ -52,6 +52,8 @@
2020/10/28: 新增根据二进制位数来存储奖励领取情况工具类,BitStoreTool、使用说明及其单测
2020/11/9: 新增lomute划分算法效率单测,结果:多次查找,元素多的情况下由末尾开始查找效率更高
# mod vendor模式加载包
通过go mod的方式加载的github上面的包会有报红的问题,但是包本身是可以运行的,这样就是会有一个问题,如果你想要点击去看方法的内容,没办法做到
+4 -4
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@@ -51,7 +51,7 @@ func (bitStore *BitStore) IsGearReceive(gear int) bool {
return false
}
position := bitStore.getGearPosition(gear, length)
return (bitStore.GearPickList[length-1] & (2 << position)) > 0
return (bitStore.GearPickList[length-1] & (1 << position)) > 0
}
//获取对应档位奖励
@@ -59,7 +59,7 @@ func (bitStore *BitStore) ReceiveByGear(gear int) ([]int, map[int]bool) {
bitStore.checkIfReceive(gear) //校验是否被领取了
length := bitStore.dynamicGrowth(gear) //数组进行动态增长
position := bitStore.getGearPosition(gear, length) //获取档位在数组中的位数位置
bitStore.GearPickList[length-1] = bitStore.GearPickList[length-1] + (2 << uint(position))
bitStore.GearPickList[length-1] = bitStore.GearPickList[length-1] + (1 << uint(position))
return bitStore.GearPickList, bitStore.FindAllGearMap()
}
@@ -91,7 +91,7 @@ func (bitStore *BitStore) fullListDeal(listSize int, length int) map[int]bool {
resultMap := make(map[int]bool, 0)
for i := 0; i < length; i++ {
for j := 0; j < bit && bitStore.MaxGear > i*bit+j; j++ {
resultMap[i*bit+j+1] = (bitStore.GearPickList[i] & (2 << uint(j))) > 0
resultMap[i*bit+j+1] = (bitStore.GearPickList[i] & (1 << uint(j))) > 0
}
}
return resultMap
@@ -101,7 +101,7 @@ func (bitStore *BitStore) shortListDeal(listSize, length int) map[int]bool {
resultMap := make(map[int]bool, 0)
for i := 0; i < listSize; i++ {
for j := 0; j < bit; j++ {
resultMap[i*bit+j+1] = (bitStore.GearPickList[i] & (2 << uint(j))) > 0
resultMap[i*bit+j+1] = (bitStore.GearPickList[i] & (1 << uint(j))) > 0
}
}
for i := listSize; i < length; i++ {
+13 -2
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@@ -6,6 +6,11 @@
package search
var (
times = 0 //用来计算一次划分进行了多少次的比较操作
charge = 0 //实际进行元素交换的次数
)
//参数说明:
//list :数组
//start : 开始比较的数字下标
@@ -17,19 +22,25 @@ func LomutoPartition(list []int, start int, end int) int {
for i := start + 1; i <= end; i++ {
if list[i] < compareValue {
moveSubscript++
charge++
list[moveSubscript], list[i] = list[i], list[moveSubscript]
}
}
charge++
list[moveSubscript], list[start] = list[start], list[moveSubscript] //交换元素
return moveSubscript
}
func LomutoQuiteSelect(list []int, pointPosition int) int {
func LomutoQuiteSelect(list []int, pointPosition int) (int, int, int) {
positionCheck(pointPosition, len(list)) //下标校验
times = 0
charge = 0
nowPosition := LomutoPartition(list, 0, len(list)-1)
times++
//循环进行lomuto划分处理,知道找到我们需要的那个位置的元素
for nowPosition != pointPosition-1 {
times++
if nowPosition > pointPosition-1 {
nowPosition = LomutoPartition(list, 0, nowPosition)
} else {
@@ -37,7 +48,7 @@ func LomutoQuiteSelect(list []int, pointPosition int) int {
}
}
return list[nowPosition]
return list[nowPosition], times, charge
}
func positionCheck(pointPosition int, len int) {
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