Borderou de evaluare (job #646260)

Compilare: main.cpp: In function 'int main()': main.cpp:12:18: 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=0;i<s.size();++i){ | ~^~~~~~~~~ main.cpp:19:18: 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=0;i<s.size();++i){ | ~^~~~~~~~~ main.cpp:23:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 23 | for(int j=i+1;j<s.size();++j){ | ~^~~~~~~~~