Containers & views (C++)

#include <print>
#include <string>
#include <vector>

int main() {
    std::vector<int> a(3, 1);   // (count, value): three 1s
    std::vector<int> b{3, 1};   // initializer list: the two elements 3 and 1
    std::println("{} {}", a, b);

    // If the braced values can't form an initializer_list<T>, braces fall back
    // to the other constructors: 3 isn't a std::string, so this is (count, value).
    std::vector<std::string> c{3, "x"};
    std::println("{}", c);
}