Compilare: user.c: In function ‘main’: user.c:15:34: warning: unused variable ‘x2’ [-Wunused-variable] int n, i, p1, p2, nr, x, x1, x2; ^ user.c:15:30: warning: unused variable ‘x1’ [-Wunused-variable] int n, i, p1, p2, nr, x, x1, x2; ^ user.c:18:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^ user.c:23:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d %c", &nr, &c ); ^ user.c:41:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &x ); ^