Compilare: main.cpp: In function 'std::vector<std::tuple<char, int, int> > swapElements(std::string&, char)': main.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:99:27: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 99 | for (auto [lc, l, c] : v) | ^