Compilare: user.cpp: In function ‘void BFS(int)’: user.cpp:27:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < G[node].size(); i++) ~~^~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:59:10: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int node = 1; node <= N; node ++) ^~~ user.cpp:62:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ sort(answer.begin(),answer.end()); ^~~~ user.cpp:64:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < answer.size(); i ++) ~~^~~~~~~~~~~~~~~ user.cpp:53:9: warning: unused variable ‘numarDrumuri’ [-Wunused-variable] int numarDrumuri=0; ^~~~~~~~~~~~