Compilare: main.cpp: In function 'int main()': main.cpp:125:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 125 | for(int i = 0; i < graph.size(); ++ i) | ~~^~~~~~~~~~~~~~ main.cpp:129:17: warning: unused variable 'father_x' [-Wunused-variable] 129 | int father_x = apm.Find_Father(graph[i].x), father_y = apm.Find_Father(graph[i].y); | ^~~~~~~~ main.cpp:129:57: warning: unused variable 'father_y' [-Wunused-variable] 129 | int father_x = apm.Find_Father(graph[i].x), father_y = apm.Find_Father(graph[i].y); | ^~~~~~~~