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// vector::emplace
#include <iostream>
#include <vector>
int main ()
{
std::vector<int> myvector = {10,20,30};
auto it = myvector.emplace ( myvector.begin()+1, 100 );
myvector.emplace ( it, 200 );
myvector.emplace ( myvector.end(), 300 );
std::cout << "myvector contains:";
for (auto& x: myvector)
std::cout << ' ' << x;
std::cout << '\n';
return 0;
}
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