题解 | #明明的随机数#

package main
import(
    "fmt"
)

func main(){
    N := 0
    fmt.Scan(&N)
    narr := make([]int,501)
    n := 0
    for i := 0; i < N; i++ {
        fmt.Scan(&n)
        if narr[n] > 0 {
            continue
        } 
        narr[n] = 1
    }
    for i := range narr {
        if narr[i] > 0 {
            fmt.Println(i)
        }
    }
    
}