Compilare: main.cpp: In function 'void get_articulation(int, int, int)': main.cpp:17:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void get_biconex(int)': main.cpp:46:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:68:21: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(aux.size() >= 2) ^~ main.cpp:71:22: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' elem.push_back({node, v[node][i]}); ^~~~ main.cpp: In function 'int main()': main.cpp:115:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < elem.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:117:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < elem[i].size(); j++) ~~^~~~~~~~~~~~~~~~