lst-0710-book.cpp
// https://godbolt.org/z/WK86eaz1x
#include <vector>
#include <iostream>
using std::vector; using std::cout;
template<typename T>
std::ostream& operator<<(std::ostream&os, const vector<T>& data) {
for(const auto &e : data) {
os << e << ' ';
}
return os;
}
int main() {h
// Beispielcode hier
}