Compilare: main.cpp: In function 'int remove_vertex(int)': main.cpp:45:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for (int outgoing = 0; outgoing < edges[vertex].size(); ++outgoing) { | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:52:1: warning: no return statement in function returning non-void [-Wreturn-type] 52 | } | ^ main.cpp: In function 'void write()': main.cpp:74:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for (int i = 0; i < sorted.size(); ++i) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int find_root()': main.cpp:41:1: warning: control reaches end of non-void function [-Wreturn-type] 41 | } | ^