Compilare: user.cpp: In function ‘int main()’: user.cpp:39:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i = 1; i <= n; i++) ^~~ user.cpp:50:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ for(int i = 1; i <= n; i++) ^~~ user.cpp:72:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ~~^~~~~~~~~~~~~~~