Compilare: user.c: In function ‘main’: user.c:11:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d%d",&a,&b,&c,&e,&e); ^ user.c:15:12: warning: ‘d’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (c<d) sw(c,d,p) ^