Compilare: main.cpp: In function 'void addString(const string&)': main.cpp:35:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for ( i = 0; i < s.size(); ++i ) { | ~~^~~~~~~~~~ main.cpp: In function 'int String_Occurences(const string&)': main.cpp:52:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for ( i = 0; i < s.size(); ++i ) { | ~~^~~~~~~~~~ main.cpp: In function 'int Max_Prefix(const string&)': main.cpp:68:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for ( i = 0; i < s.size(); ++i ) { | ~~^~~~~~~~~~ main.cpp: In function 'void Delete_String(const string&)': main.cpp:83:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for ( i = 0; i < s.size(); ++i ) { | ~~^~~~~~~~~~ main.cpp: In function 'int Max_Prefix(const string&)': main.cpp:77:1: warning: control reaches end of non-void function [-Wreturn-type] 77 | } | ^