Compilare: main.cpp: In function 'int hashing(std::__cxx11::string)': main.cpp:8:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < x.size(); i++){ ~~^~~~~~~~~~ main.cpp:7:9: warning: unused variable 'p' [-Wunused-variable] int p = 1; ^ main.cpp: In function 'int hashing(int)': main.cpp:22:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^