Compilare: main.cpp: In function 'bool compare(int, int)': main.cpp:32:9: warning: unused variable 'X' [-Wunused-variable] int X = Comp[x].size(), Y = Comp[y].size(); ^ main.cpp:32:29: warning: unused variable 'Y' [-Wunused-variable] int X = Comp[x].size(), Y = Comp[y].size(); ^ main.cpp: In function 'int main()': main.cpp:62:18: warning: operation on 'K' may be undefined [-Wsequence-point] Fool[++K] = K; ^~~ main.cpp:87:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < Comp[R].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:95:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < Comp[L + 1].size(); i++) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:103:52: warning: operation on 'L' may be undefined [-Wsequence-point] Vertex.push_back({Comp[L][0], Comp[++L][0]}); ^~~