Compilare: user.cpp: In function ‘void bordare()’: user.cpp:52:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘int fil(int, int, int)’: user.cpp:73:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void varianta2()’: user.cpp:77:10: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] char q,d[5]; ^ user.cpp:107:17: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<l1<<' '<<c1<<'\n'<<q; ^ user.cpp:107:8: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<l1<<' '<<c1<<'\n'<<q; ^