Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int f = 0 ; f < m[nod].size() ; f ++) | ~~^~~~~~~~~~~~~~~ main.cpp:39:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int f = 0 ; f < m[nod].size() ; f ++) | ~~^~~~~~~~~~~~~~~ main.cpp:28:9: warning: unused variable 'mn' [-Wunused-variable] 28 | int mn = INT_MAX ; | ^~