989. Add to Array-Form of Integer.go

package leetcode

funcaddToArrayForm(A []int, Kint) []int {
res:= []int{}
fori:=len(A) -1; i>=0; i-- {
sum:=A[i] +K%10
K/=10
ifsum>=10 {
K++
sum-=10
 }
res=append(res, sum)
 }
for ; K>0; K/=10 {
res=append(res, K%10)
 }
reverse(res)
returnres
}

funcreverse(A []int) {
fori, n:=0, len(A); i<n/2; i++ {
A[i], A[n-1-i] =A[n-1-i], A[i]
 }
}