Compilare: user.c: In function 'main': user.c:50: warning: use of 'll' length modifier with 'f' type character user.c:50: warning: use of 'll' length modifier with 'f' type character user.c:58: warning: use of 'll' length modifier with 'f' type character user.c:58: warning: use of 'll' length modifier with 'f' type character user.c:84: warning: use of 'll' length modifier with 'f' type character user.c:84: warning: use of 'll' length modifier with 'f' type character