Compilare: user.c: In function 'main': user.c:62: warning: implicit declaration of function 'strtok' user.c:62: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:64: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:66: 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:71: warning: passing argument 1 of 'atoi' makes pointer from integer without a cast user.c:107: warning: control reaches end of non-void function