Compilare: main.cpp: In function 'int main()': main.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(j = 0; j < myhash[clasa].size(); j++){ | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:15:37: warning: variable 'poz' set but not used [-Wunused-but-set-variable] 15 | {int n, i, j, x, caz, clasa, gasit, poz; | ^~~