Compilare: main.cpp: In function 'int main()': main.cpp:78:13: warning: unused variable 'w' [-Wunused-variable] 78 | int w = muchii[i].w; | ^ main.cpp:107:14: warning: unused variable 'b' [-Wunused-variable] 107 | bool b = DFS(var.v, graf, vizitat, ciclu); | ^ main.cpp:90:15: warning: unused variable 'varf' [-Wunused-variable] 90 | Varf var, varf; | ^~~~ main.cpp: In function 'bool DFS(int, const std::vector<std::vector<Varf> >&, std::vector<bool>&, std::vector<Varf>&)': main.cpp:56:19: warning: control reaches end of non-void function [-Wreturn-type] 56 | ciclu.pop_back(); | ~~~~~~~~~~~~~~^~