Compilare: user.c: In function 'main': user.c:61: warning: implicit declaration of function 'strtok' user.c:61: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:63: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:65: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:69: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:70: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:106: warning: control reaches end of non-void function