Compilare: user.c:11:1: warning: no semicolon at end of struct or union [enabled by default] } a[400]; ^ user.c: In function ‘qs’: user.c:29:41: warning: operation on ‘v[j].d’ may be undefined [-Wsequence-point] v[i].d=v[i].d+v[j].d-(v[j].d=v[i].d); ^ user.c:30:41: warning: operation on ‘v[j].p’ may be undefined [-Wsequence-point] v[i].p=v[i].p+v[j].p-(v[j].p=v[i].p); ^ user.c: In function ‘main’: user.c:45:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&T); ^ user.c:48:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.c:50:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d",&a[i].x,&a[i].y); ^