Compilare: main.cpp: In function 'int main()': main.cpp:62:18: warning: operation on 'K' may be undefined [-Wsequence-point] Fool[++K] = K; ^~~ main.cpp:88:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < Comp[R].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:96:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < Comp[L + 1].size(); i++) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:104:52: warning: operation on 'L' may be undefined [-Wsequence-point] Vertex.push_back({Comp[L][0], Comp[++L][0]}); ^~~