Compilare: user.c: In function `flux': user.c:26: warning: suggest parentheses around comparison in operand of & user.c: In function `main': user.c:95: warning: use of `ll' length modifier with `f' type character user.c:95: warning: use of `ll' length modifier with `f' type character user.c:97: warning: use of `ll' length modifier with `f' type character user.c:97: warning: use of `ll' length modifier with `f' type character user.c:101: warning: implicit declaration of function `sqrt' user.c:121: warning: use of `ll' length modifier with `f' type character user.c:121: warning: use of `ll' length modifier with `f' type character user.c:88: warning: unused variable `nod'