Compilare: main.cpp: In function 'void insert(std::string&, int, int, int)': main.cpp:23:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | while (start < seq.size() && remLen) { | ~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:58:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for (int start = 0; start < seq.size(); start++) { | ~~~~~~^~~~~~~~~~~~