reactivi.c: In function `Cauta': reactivi.c:28: warning: `Unde' might be used uninitialized in this function reactivi.c: In function `main': reactivi.c:70: warning: int format, different type arg (arg 3) reactivi.c:70: warning: int format, different type arg (arg 4) reactivi.c:70: warning: too many arguments for format