Compilare: main.cpp: In function 'void df(int)': main.cpp:20:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i = 0;i < vec[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:69:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for(int j = 0; j < vec[i].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:69:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 69 | for(int j = 0; j < vec[i].size(); j++) | ^~~ main.cpp:71:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 71 | sort(vec[i].begin(),vec[i].end(),cmp); | ^~~~ main.cpp:36:17: warning: 'root' may be used uninitialized [-Wmaybe-uninitialized] 36 | int odd = 0,root; | ^~~~