Compilare: main.cpp: In function 'void removeFromHash(long long int)': main.cpp:31:23: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(long i = 0; i < h[cod_dispersie].size(); ++i){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~