Compilare: main.cpp: In function 'int okay(int)': main.cpp:16:46: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 16 | return (g[node].size() - nrMarked[node]) <= a[node]; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp:14:9: warning: unused variable 'opt1' [-Wunused-variable] 14 | int opt1 = g[node].size() - nrMarked[node]; | ^~~~ main.cpp:15:9: warning: unused variable 'opt2' [-Wunused-variable] 15 | int opt2 = a[node]; | ^~~~