Compilare: main.cpp: In function 'int dfs(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:50:11: warning: unused variable 'j' [-Wunused-variable] 50 | int i,j,x,y,root; | ^ main.cpp:50:17: warning: unused variable 'root' [-Wunused-variable] 50 | int i,j,x,y,root; | ^~~~