题解 | #整型数组合并#

package main

import (
	"bufio"
	"fmt"
	"os"
	"sort"
	"strconv"
	"strings"
)

func main() {
	in := bufio.NewScanner(os.Stdin)
	in.Scan()
	in.Scan()
	arr1 := strings.Fields(in.Text())
	in.Scan()
	in.Scan()
	arr2 := strings.Fields(in.Text())
	arr1 = append(arr1, arr2...)

	m := make(map[string]struct{})
	for _, s := range arr1 {
		m[s] = struct{}{}
	}

	var ret []int
	for k, _ := range m {
		i, _ := strconv.Atoi(k)
		ret = append(ret, i)
	}
	sort.Ints(ret)
	for _, v := range ret {
		fmt.Print(v)
	}
}