Compilare: main.cpp:20:5: warning: built-in function 'exp2' declared as non-function [-Wbuiltin-declaration-mismatch] 20 | int exp2[1 + 2 * NMAX]; | ^~~~ main.cpp: In function 'void dfs(int, int)': main.cpp:33:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for (int i = 0; i < graf[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~