Compilare: user.c: In function ‘make5’: user.c:14:5: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] pOf5 = (int*) malloc(sizeof(int) * 13); ^ user.c:14:19: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] pOf5 = (int*) malloc(sizeof(int) * 13); ^