题解 | #整型数组合并#

无脑调用标准库

#include <iostream>
#include <set>

int main(int argc, char const *argv[])
{
    std::set<int> ms;
    int n1 = 0, n2 = 0;
    int num1 = 0,num2 = 0;

    std::cin >> n1;
    for (int i = 0; i < n1; i++)
    {
        std::cin >> num1;
        ms.insert(num1);
    }

    std::cin >> n2;
    for (int i = 0; i < n2; i++)
    {
        std::cin >> num2;
        ms.insert(num2);
    }

    for (auto it : ms)
    {
        std::cout << it;
    }
    std::cout << std::endl;
    return 0;
}