Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:36:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for (i = 0; i < g[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:40:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (j = i + 1; j < g[nod].size(); j++) | ~~^~~~~~~~~~~~~~~