Compilare: user.cpp: In function ‘int varianta1()’: user.cpp:38:25: warning: unused variable ‘i1’ [-Wunused-variable] int i,j,nr=0,mx=0,x,i1,jj ; ^ user.cpp:38:28: warning: unused variable ‘jj’ [-Wunused-variable] int i,j,nr=0,mx=0,x,i1,jj ; ^ user.cpp: In function ‘void varianta2()’: user.cpp:53:10: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] char q,d[5]; ^ user.cpp:83:17: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<l1<<' '<<c1<<'\n'<<q; ^ user.cpp:83:8: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<l1<<' '<<c1<<'\n'<<q; ^