Compilare: main.cpp: In function 'int main()': main.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for(j = 0; j < hash1[r].size(); j++){ | ~~^~~~~~~~~~~~~~~~~ main.cpp:12:38: warning: variable 'poz' set but not used [-Wunused-but-set-variable] 12 | { int i, k, n, j, x, op, r, gasit, poz,aux; | ^~~ main.cpp:12:42: warning: unused variable 'aux' [-Wunused-variable] 12 | { int i, k, n, j, x, op, r, gasit, poz,aux; | ^~~