Compilare: main.cpp: In function 'void findNumbers(std::string)': main.cpp:10:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for(int i = 0; i < s.size(); i ++) | ~~^~~~~~~~~~ main.cpp:29:13: warning: 'ch' may be used uninitialized in this function [-Wmaybe-uninitialized] 29 | if(ch == '-') | ^~