Compilare: user.c: In function ‘main’: user.c:11:36: warning: unused variable ‘hb’ [-Wunused-variable] int n, m, x, t, i, sj, fr, h1, hb; ^ user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ user.c:15:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &h[i], &k[i]); ^ user.c:18:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &x, &t); ^