题解 | 明明的随机数

package main

import (
	"fmt"
	"sort"
)

func main() {
	var n int
	fmt.Scan(&n)

	checkMap := map[int]bool{}
	targetArr := []int{}
	for i := 0; i < n; i++ {
		var v int
		fmt.Scan(&v)

		if _, ok := checkMap[v]; ok {
			continue
		}

		checkMap[v] = true
		targetArr = append(targetArr, v)
	}

	sort.Ints(targetArr)
	for _, v := range targetArr {
		fmt.Printf("%v\n", v)
	}
}