#include <iostream>
#include <set>
#include <vector>
using namespace std;
vector<int> f(vector<int> vec, vector<int> vec2)
{
set<int> s;
s.insert(vec.begin(), vec.end());
s.insert(vec2.begin(), vec2.end());
vector<int> vec3(s.begin(), s.end());
return vec3;
}
int main()
{
vector<int> vec;
vector<int> vec2;
for(int i=10;i>=0;i--){
vec.push_back(i);
}
for(int i=5;i>=0;i--){
vec2.push_back(i);
}
vector<int> vec3 = f(vec, vec2);
for(const int &a : vec3){
cout<<a<<' ';
}
return 0;
}
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