Borderou de evaluare (job #606578)

Compilare: main.cpp: In function 'int numar(std::string)': main.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 12 | for( int i = 1; i < a.size(); i++ ) | ~~^~~~~~~~~~ main.cpp: In function 'std::string sir(std::string)': main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 19 | for( int i = 1; i < a.size(); i++ ) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:29:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 29 | for( int i = 0; i < a.size(); i++ ) | ~~^~~~~~~~~~ main.cpp:58:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 58 | for( int j = 0; j < b.size(); j++ ) | ~~^~~~~~~~~~