Compilare: main.cpp: In function 'int main()': main.cpp:93:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for(j = 0; j < hashh[clasa].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:80:31: warning: variable 'poz' set but not used [-Wunused-but-set-variable] 80 | int n, i, j, x, y, clasa, ok, poz; | ^~~