lst-0021-book.cpp
// https://godbolt.org/z/1WG8zvhYe
#include <vector>
#include <iostream> // cout, endl
int main() {
std::vector qus{1,4,9,16,25};
for(auto it = qus.begin(); it!=qus.end(); ++it) // between begin() and end()
std::cout << *it << " "; // with *it you get from the iterator to the element
std::cout << std::endl;
}