Compilare: main.cpp: In function 'bool check(int)': main.cpp:17:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | if(r>=hsh[ind[1]].size()) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:20:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | if(r>=hsh[ind[i]].size() || hsh[ind[i]][r]!=hsh[ind[1]][r]) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int j=0;j<s.size();j++) | ~^~~~~~~~~