Compilare: main.cpp: In function 'int main()': main.cpp:120:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for(int i = 0; i<init.size(); i++) | ~^~~~~~~~~~~~ main.cpp:171:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 171 | for(int i = 0; i<modif.size(); i++) | ~^~~~~~~~~~~~~