Compilare: user.c: In function 'main': user.c:10: warning: format '%u' expects type 'unsigned int *', but argument 3 has type 'long unsigned int *' user.c:11: warning: format '%u' expects type 'unsigned int *', but argument 3 has type 'long unsigned int *' user.c:12: warning: format '%u' expects type 'unsigned int *', but argument 3 has type 'long unsigned int *' user.c:14: warning: implicit declaration of function 'calloc' user.c:14: warning: incompatible implicit declaration of built-in function 'calloc' user.c:17: warning: format '%u' expects type 'unsigned int *', but argument 3 has type 'long unsigned int *' user.c:18: warning: format '%u' expects type 'unsigned int *', but argument 3 has type 'long unsigned int *' user.c:23: warning: format '%u' expects type 'unsigned int', but argument 3 has type 'long unsigned int' user.c:24: warning: implicit declaration of function 'free'