Compilare: user.cpp: In function ‘int main()’: user.cpp:13:50: warning: unused variable ‘l’ [-Wunused-variable] int n,m,a[52][52],i,j,viz[5001]={0},k,t,d1,d2,l,ok,ok2,mini; ^ user.cpp:13:52: warning: unused variable ‘ok’ [-Wunused-variable] int n,m,a[52][52],i,j,viz[5001]={0},k,t,d1,d2,l,ok,ok2,mini; ^ user.cpp:13:55: warning: variable ‘ok2’ set but not used [-Wunused-but-set-variable] int n,m,a[52][52],i,j,viz[5001]={0},k,t,d1,d2,l,ok,ok2,mini; ^ user.cpp:13:59: warning: variable ‘mini’ set but not used [-Wunused-but-set-variable] int n,m,a[52][52],i,j,viz[5001]={0},k,t,d1,d2,l,ok,ok2,mini; ^