Compilare: user.c: In function ‘main’: user.c:27:2: warning: implicit declaration of function ‘strcmp’ [-Wimplicit-function-declaration] if (strcmp(s, "ciocolata") == 0) ^ user.c:39:1: warning: implicit declaration of function ‘close’ [-Wimplicit-function-declaration] close(f); ^ user.c:38:8: warning: ‘v[2]’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(g,"%d %d %d\n", v[0], v[1], v[2]); ^ user.c:38:8: warning: ‘v[0]’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.c:38:8: warning: ‘v[1]’ may be used uninitialized in this function [-Wmaybe-uninitialized]