Borderou de evaluare (job #809608)

Compilare: main.cpp: In function 'int main()': main.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 35 | for(int i=0;i<s.length();i++) | ~^~~~~~~~~~~ main.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 59 | for(int i=0;i<s.length();i++) | ~^~~~~~~~~~~ main.cpp:66:9: warning: unused variable 's' [-Wunused-variable] 66 | int s=-1,d=-1; | ^