Borderou de evaluare (job #804303)

Compilare: main.cpp: In function 'int main()': main.cpp:24:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 24 | for(int i=0; i<S.size(); i++) k+=nr[S[i]-48]; | ~^~~~~~~~~ main.cpp:30:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 30 | { if(i<S.size()-1) k++; | ~^~~~~~~~~~~