Borderou de evaluare (job #703712)

Compilare: main.cpp: In function 'int main()': main.cpp:25:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 25 | for(int u = 0;u<s.size();u++){ | ~^~~~~~~~~ main.cpp:30:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 30 | for(int k = 0;k<s.size();k++){ | ~^~~~~~~~~