#include <iostream>
#include <vector>
using namespace std;
template <typename T>
void chk_for_else(T& items) {
if (!items.empty()) for (auto i: items) {
cout << i << endl;
} else {
cout << "else" << endl;
}
}
int main()
{
vector<int> items;
chk_for_else(items);
items.assign({1, 2, 3});
chk_for_else(items);
return 0;
}
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