Compilare: main.cpp: In function 'int do_union(int, int)': main.cpp:46:1: warning: no return statement in function returning non-void [-Wreturn-type] 46 | } | ^ main.cpp: In function 'int main()': main.cpp:54:9: warning: 'cod' may be used uninitialized [-Wmaybe-uninitialized] 54 | if(cod == 1) | ^~ main.cpp:53:13: note: 'cod' was declared here 53 | int cod, x, y; | ^~~ main.cpp:56:29: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 56 | int rx = do_find(x); | ~~~~~~~^~~ main.cpp:53:18: note: 'x' was declared here 53 | int cod, x, y; | ^ main.cpp:57:29: warning: 'y' may be used uninitialized [-Wmaybe-uninitialized] 57 | int ry = do_find(y); | ~~~~~~~^~~ main.cpp:53:21: note: 'y' was declared here 53 | int cod, x, y; | ^