Compilare: user.c: In function ‘main’: user.c:6:52: warning: unused variable ‘tb’ [-Wunused-variable] double d, v1, h1, g1, v2, h2, g2, vs, ddb, dp, tb,t; ^ user.c:6:43: warning: unused variable ‘ddb’ [-Wunused-variable] double d, v1, h1, g1, v2, h2, g2, vs, ddb, dp, tb,t; ^ user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%lf%lf%lf%lf%lf%lf%lf%lf", &d, &v1, &h1, &g1, &v2, &h2, &g2, &vs ); ^