http://tjuacm.chaosheng.top/problem.php?id=1248
AC

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <queue>

using namespace std;

const int N = 1000;
int num[N];

int main(){
    int n, m, t;
    cin >> t;
    while(t--){
        cin >> m >> n;
        memset(num, 0, sizeof(num));
        for(int i  = 0; i < m+n; i++){
            cin >> num[i];
        }
        sort(num, num+m+n);
        for(int i  = 0; i < m+n; i++){
            cout << num[i] << " ";
        }
        cout << endl;
    }

    return 0;
}