今天需要写一个算法,获取一串数字中与给定数最接近的数字,代码如下
package main
import (
"fmt"
)
func main(){
arr:=[]int{12,16,29,34,39,43,55,64,71,89,90,9}
zuijin:=get_zuijin(40,arr)
fmt.Println(zuijin)
}
func get_zuijin(this int,arr []int) int{
min:=0
if this==arr[0]{
return arr[0]
}else if this>arr[0]{
min = this-arr[0]
}else if this<arr[0]{
min = arr[0]-this
}
for _,v:=range arr{
if v==this{
return v
}else if v>this{
if min>v-this{
min = v-this
}
}else if v<this{
if min>this-v{
min = this-v
}
}
}
for _,v:=range arr{
if this+min == v{
return v
}else if this-min == v{
return v
}
}
return min
}