Compilare: main.cpp: In function 'void df(int)': main.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 24 | for(int i=0; i<v[nod].size(); ++i) | ~^~~~~~~~~~~~~~ main.cpp:38:18: warning: 'fmax' may be used uninitialized [-Wmaybe-uninitialized] 38 | l[nod]=l[fmax]; | ~~~~~~^ main.cpp:22:9: note: 'fmax' was declared here 22 | int fmax, it, dmax=0; | ^~~~