Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(i = 0; i < v[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:15:12: warning: unused variable 'nod' [-Wunused-variable] 15 | int i, nod; | ^~~ main.cpp: In function 'int centroid(int, int)': main.cpp:29:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(i = 0; i < v[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'void compute(int, int)': main.cpp:43:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(i = 0; i < v[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:41:17: warning: unused variable 'w' [-Wunused-variable] 41 | int i, nod, w; | ^