Compilare: main.cpp: In function 'int Hash(std::string)': main.cpp:20:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int j=0;j<x.size();j++) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i=0;i<vi[h].size();i++) | ~^~~~~~~~~~~~~ main.cpp:54:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int i=0;i<vi[h].size();i++) | ~^~~~~~~~~~~~~