#include <algorithm>
#include <iostream>
#include <thread>
#include <vector>
using namespace std;
int main()
{
vector<thread> v;
v.push_back(thread());
v.push_back(thread());
v.push_back(thread());
for_each(v.begin(), v.end(), [](const thread& t) { cout << t.get_id(); });
}
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