Compilare: main.cpp: In function 'int main()': main.cpp:18:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | while(poz+2<s.size()) | ~~~~~^~~~~~~~~ main.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int i=1;i<v.size()-1;i++) | ~^~~~~~~~~~~ main.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~ main.cpp:12:33: warning: variable 'lpoz' set but not used [-Wunused-but-set-variable] 12 | int cer,lenght=1,poz=0,mx=0,lpoz=0,x=0,cost=0; | ^~~~