Borderou de evaluare (job #663280)

Compilare: main.cpp: In function 'int main()': main.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 17 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp:13:11: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 13 | int k,ok=0,c=0,ck=0,x=0; | ^~ main.cpp:13:20: warning: variable 'ck' set but not used [-Wunused-but-set-variable] 13 | int k,ok=0,c=0,ck=0,x=0; | ^~