Compilare: user.c: In function ‘numarTermeni’: user.c:28:9: warning: implicit declaration of function ‘exit’ [-Wimplicit-function-declaration] exit(0); ^ user.c:28:9: warning: incompatible implicit declaration of built-in function ‘exit’ [enabled by default] user.c: In function ‘verifica’: user.c:50:17: warning: incompatible implicit declaration of built-in function ‘exit’ [enabled by default] exit(0); ^