Compilare: main.cpp: In function 'int lee(int, int)': main.cpp:29:1: warning: no return statement in function returning non-void [-Wreturn-type] 29 | } | ^ main.cpp: In function 'int main()': main.cpp:33:19: warning: unused variable 'j' [-Wunused-variable] 33 | int n,m,x,y,i,j; | ^