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package main
import (
"fmt"
)
func duplicateZeros(arr []int) []int {
ret := []int{}
for _, v := range arr {
if len(arr) == len(ret) {
break
}
if v == 0 {
ret = append(ret, []int{0, 0}...)
} else {
ret = append(ret, v)
}
}
return ret
}
func main() {
arr1 := []int{1, 0, 2, 3, 0, 4, 5, 0}
arr2 := []int{1, 2, 3}
arr3 := []int{0, 3, 0, 4, 5}
fmt.Println(duplicateZeros(arr1))
fmt.Println(duplicateZeros(arr2))
fmt.Println(duplicateZeros(arr3))
}
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