Compilare: main.cpp: In function 'int main()': main.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for (int i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:39:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | while (isdigit(s[i]) && i < s.size()) | ~~^~~~~~~~~~ main.cpp: In function 'int ordine(char)': main.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type] 26 | } | ^ main.cpp: In function 'int main()': main.cpp:165:25: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 165 | f.push(to_string(r)); | ~~~~~~~~~^~~ main.cpp:147:13: note: 'r' was declared here 147 | int r; | ^ main.cpp:126:37: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 126 | f.push(to_string(r)); | ~~~~~~~~~^~~ main.cpp:109:25: note: 'r' was declared here 109 | int r; | ^ main.cpp:88:37: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 88 | f.push(to_string(r)); | ~~~~~~~~~^~~ main.cpp:71:25: note: 'r' was declared here 71 | int r; | ^