Compilare: user.c: In function ‘main’: user.c:8:30: warning: unused variable ‘e5’ [-Wunused-variable] int p, gasit, cn, n, e2, e5, k,r, x, ls, ld; ^ user.c:8:26: warning: unused variable ‘e2’ [-Wunused-variable] int p, gasit, cn, n, e2, e5, k,r, x, ls, ld; ^ user.c:8:19: warning: unused variable ‘cn’ [-Wunused-variable] int p, gasit, cn, n, e2, e5, k,r, x, ls, ld; ^ user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &p); ^