Compilare: main.cpp: In function 'int Union(int, int)': main.cpp:41:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:79:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<rasp.size(); i++) ~^~~~~~~~~~~~